United see it out under serious pressure in the dying moments and claim a 3-2 victory.
The last kick falls to Alex Bruce, who scuffs his shot wide of the post from just inside the six-yard box.
Great chance! Massive opportunity for Chester, who is found in space by Boyd but can't provide the finish, with De Gea out to block the shot behind for a corner.
Hull send the ball into the box and win a corner but they take it quickly and fail to make it count.
RED CARD - Antonio Valencia. Complete petulance from Valencia, who was booked in the first half and receives a second yellow after kicking the ball away.
Hernandez wins a throw deep in the Hull half in a bid to run the clock down. United taking their time over it and hold it in the corner.
De Gea almost makes a complete mess out of the next ball into the box, as he misses the punch/catch and gets the wrong side of the Hull forwards but Graham can't stab it towards goal and the defence gets back in time.
A good chance for Hull as Sagbo wriggles past Evra and stands a cross up to the back post but Graham almost has too much time and can't generate the power to beat De Gea, who takes a simple catch.
Hernandez takes on Bruce but comes off worse as the defender's tackles comes back off the striker and out for a goal kick.
United are steadily sitting deeper and deeper and not committing quite as many men forward in their attacks.
Good stuff from Evra, who evades a couple of tackles and sends the ball out to the right.
Hull patiently probe but Chester's header back across goal is cut out by De Gea.
Rooney gives it away in midfield but Hull can't make anything of it and eventually put the ball out for a throw to United.
Hull throw in deep in their own half by the corner flag. United pin them in and are looking good to see this out at the moment.
Bruce is back on and Hull come forward but Sagbo is penalised for a foul on Cleverley.
Bruce is getting treatment on a bloodied nose following a collision with the post.
It's Young's last action as he is replaced by Michael Carrick.
Excellent cross from the right by Young and Bruce has to head behind for a corner.
Hull are just struggling to put United under any sustained pressure but they have looked dangerous from every set piece and that may be their best hope to get back level.
Bruce close to dropping Harper right it in with an under-hit back-pass but the 'keeper is out in time to nick the ball away from the advancing Hernandez.
George Boyd on for Maynor Figueroa.
Rooney sends the free kick wide of the target and is then booked for complaining to the referee after being adamant he should have had a corner.
Heavy challenge from Bruce on Welbeck is penalised. Free kick on the edge of the Hull box and there are plenty of interested parties, not least Rooney.
Hull come forward through Livermore but the attack fizzles out and United break.
Hull are still working extremely hard to close United down but the away side are more dominant now with Rooney in the middle of the pitch.
Davies Moyes furious after United have a penalty appeal waved away. It looked a good challenge from Elmohamady on Evra.
Chester very much the hero after scoring in the fourth minute but United have slowly turned the screw since half time and are now level after the full-back's own goal.
GOAL!!! (Chester, own goal) Welbeck plays it out to Young and his cross from the right is headed into his own net by James Chester while under pressure from Rooney.
Poor from Hernandez, who is well found by Welbeck but dallies on the ball for too long and fails to return the pass and take advantage of a three on two situation.
Januzaj in the spotlight again after what looks like a dive. Play goes on, no free kick or a booking for the attacker.
So close from Bruce! Huddlestone's pinpoint corner is met by Bruce but his clean header comes back off the woodwork and out of harm's way.
A good low shot from Huddlestone deflects behind for a corner.
A first change for Man United, with Darren Fletcher coming off and being replaced by Javier Hernandez. It looks as though Rooney will drop into the midfield.
Huddlestone's ball into the box is headed out of play by Rooney.
Welbeck can't find a way through the Hull defence and Hull break through Sagbo. Valencia is caught out of position and gets a yellow card for bringing the forward down.
Evra receiving treatment after going down after an aerial battle with Elmohamady. He hobbles to the touchline but should be fit to continue.
Fletcher lines up a long-range shot but it lacks power and is comfortably saved by Harper despite a small deflection on its way through.
Smalling deals with a ball into the box, watching it bounce before nodding back to De Gea.
United building some pressure but Smalling's back heel doesn't find Rooney. Rooney then gives it away to Huddlestone.
Corner for United at the other end with Elmohamady putting it behind.
Close for Hull as Davies can't quite direct Huddlestone's delivery into the net. A let off for United.
Sagbo shot from the edge of the area is comfortably punched clear by De Gea. Huddlestone's effort is then deflected behind for a corner.
Cheers around the KC now as Januzaj is penalised for handball. The second half is yet to really catch fire.
Januzaj goes down under pressure from Davies and is awarded the free kick, much to the annoyance of the Hull fans, who feel it was a bit soft, to say the least.
Sagbo breaks with purpose but Valencia and Januzaj team up to get back possession.
Good touches from Huddlestone in the middle for Hull. He's very much a calming influence on the side.
Januzaj exchanges passes with Rooney and is almost in on goal but Hull's defence stands firm.
Hull have changed things slightly, switching to a 5-4-1 formation with Sagbo out on the left for the time being. Livermore loses possession and United come forward but Young's attempted cross is wild and behind for a goal kick.
Two changes for Hull at half-time - Steve Harper on for the injured McGregor in goal, with Robert Koren coming on for Meyler. United get us under way and keep the ball in the middle of the field.
Adnan Januzaj to score next is a Sky Bet PRICE BOOST at 12/1.
Hull are now out to 5/1 with Sky Bet to take all three points, despite causing United all sort of problems inside the first 15 minutes. The away side are odds-on at 10/11, with the draw 6/4.
The half-time whistle blows and we go into the break at Hull 2 Man United 2. It's perfectly poised for another thrilling half, with United possibly looking the most likely after coming back from 2-0 down.
Januzaj shot blocked by Davies, who didn't know much about it.
Davies beats Rooney to a long ball and United win a throw on the right.
Huddlestone's lofted ball in Graham's direction is played with too much venom and goes behind for a goal kick. A minimum of three minutes will be added on at the end of the first half.
Janujaz brushed off the ball before Sagbo wins a free kick on the half way line.
Rooney nearly plays Valencia in behind on the right but Livermore does really well to dispossess the winger.
Smalling with a powerful header away before Sagbo goes down under a challenge from Evans in the area. Nothing in it really and the games continues.
Bruce puts in a couple of seriously strong tackles and Hull mount an attack from Graham. He comes forward and shoots but the ball deflects up in the air and behind for a Hull corner.
Valencia a bit to keen to win back possession for United and fouls his man. Figueroa takes his time over sending the free kick upwards Graham.
Hull still looking dangerous when they come forward but United appear a little more steady at the back now.
United probing for an opening with Rooney and Welbeck taking turns to drop deep and help create from midfield.
Januzaj tries a curling effort from the edge of the area but Bruce does well to make the block.
Evans allowed to come a long way forward from the back but Rooney and Welbeck fail to link up as well as they did for the second United goal and the attack comes to nothing.
Rooney heads away the second cross after the first fails to get past the first man.
Second booking of the match goes to Januzaj, who fouls Ahmed Elmohamady down by the byline. Chance for Huddlestone to whip in a dangerous cross.
A little bit scrappy with Young and Valencia giving it away before the latter fouls Meyler.
Some good passing from the home side looks to have settled them down a bit but United are back on the ball again and look hungry to take the lead before the break.
Poor from Evra, who gives it away just inside the Hull half and Sagbo does well to hold the ball up and wait for support.
It's breathless action but Valencia can't quite force a corner on the right, with Figueroa doing enough to win the goal kick.
De Gea out to prevent Livermore after Sagbo almost found him breaking through the middle.
Smalling tries to find Rooney but the pass is too heavy and runs through for a goal kick.
What an incredible first 25 minutes, with United now looking most likely having gone two behind early on. Hull don't know what's hit them and now it's the away fans in full voice.
GOAL!!! (Rooney) What a brilliant goal! Rooney and Welbeck exchange passes before Rooney unleashes an unstoppable volley past McGregor from outside of the area.
A rare quiet spell in the match with Hull on the ball but not really threatening.
Huddlestone in well to tackle the tricky Januzaj but United have it back and look to build from the back.
United clearly caught cold early on but they're getting more control following that Smalling header and it's not hard to see more goals before half time.
The third quick corner comes to Rooney at the back post but his attempted volley flies well over the bar.
Welbeck almost glances it goalwards but Chester puts it behind for a corner. Cleverley tests McGregor who is up to the challenge, punching behind for another corner.
Welbeck on a good run dancing past the Hull midfield before Huddlestone brings him down. Rooney to deliver again.
GOAL!!! (Smalling) The free kick from the right is delivered perfectly by Wayne Rooney and Chris Smalling's flicked header finds the corner of the net.
Januzaj brought down by Figueroa, who is the first name into the book.
United forced into an early sub, with Januzaj coming on to replace Rafael, who is limping with what looks a groin problem. Valencia slots in at right back.
More Hull pressure as they win a throw down by the corner flag.
United have seen plenty of the ball but they're sloppy in possession and Hull have punished them early on here. Rooney in late on Huddlestone but no card given.
McGregor still struggling with an injury following the Ashley Young challenge earlier on but it looks like he'll continue for now.
GOAL!!! (Meyler) United are all over the place at the back and David Meyler doubles Hull's lead. The ball bounces around the United box before Meyler stabs towards goal and it takes a big touch off Evans and past the helpless David De Gea.
Pass towards the overlapping Rafael is over hit and Hull can regroup with a goal kick.
Welbeck closes down Curtis Davies but gets back to make a strong, but fair, challenge on the striker. The England man stays down for a moment but he's soon back on his feet.
McGregor receiving some treatment after the Young challenge but he's fit to resume.
Young almost latches onto a throughball but McGregor is out to claim the ball just in time.
Rooney crowded out on the edge of the box and Hull keep possession well. Huddlestone pulling the strings quite nicely so far.
Hull working very hard already to press United all over the park. Young gets a touch or two but Valencia's cross from the right is cleared by Bruce.
Steve Bruce has never won as a manager against his old club, but he looks fired up on the touchline now.
United keep the ball and send it forward towards Valencia.
GOAL!!! (Chester) A fantastic start for the Tigers, who take the lead through James Chester. Bruce wins the initial header from Huddlestone's corner and Chester is in the right place at the right time to fire into the roof of the net from just inside the six-yard box. His first Premier League goal. What a start!
Livermore sets Elmohamady away on the right and he wins a corner. Huddlestone to deliver.
The ball is cleared but a United break away slows down and they come all the way back to their centre halves.
Hull get us started here at the KC Stadium and the home side put United under pressure on the left side. Hull win a free kick out near the touchline.
The teams are in the tunnel and we're all set to get this busy day of Boxing Day football under way.
Chris Green from Huddersfield does not agree, writing: "This game should be a breeze for the visitors... United to win 3-0, with Welbeck (2) and Young scoring the goals for David Moyes' side."
Kevin Hall says: "A bleak day with a cold wind may see an uneventful start to the game with Hull stacking the defence. A physical game is ensured and the cold deadlock may just possibly be decided by a single goal."
For those keen on the outright markets and accumulators, Sky Bet make Man United 3/5 to claim all three points, with Hull 5/1 and the draw priced up at 3/1.
Today's hosts haven't beaten Man United since the 1970s and United could be called Christmas specialists, having won 16 of their past 17 Boxing Day games, but this Premier League season has been packed full of surprises so far and I'm struggling to imagine a one-sided affair this afternoon.
Chris has emailed: "Man u to continue their winning ways 0-3 welbeck, young and Rooney to score. UNITED!!"
"Hi I'm Nathan from Milton Keynes and I am predicting a 1-0 victory for Hull City, simply because they're at home and Moyes' team selection is wrong. However if it were to be at Old Trafford Hull would get trashed."
Kamzy Miah says: "Strong United team playing in my opinion, although I would have loved to see Hernandez, Januzaj, and Kagawa getting a run. My prediction is 2-0 United! C'Mon You Reds!!!"
Donald Mackintosh from Inverness has been in touch and he's also keen on Rooney to have plenty of joy, writing: "Man Utd will win 3-0 today (Rooney hat-trick), this is the start of the charge back up the league."
Hammad writes: "I think united will win this 5-0, rooney with 2, welbeck with 2 and young with 1. If we win this we go 6th and can really challenge at the top, COME ON UNITED!!!"
Sky Bet have been in touch with a couple of their enticing PRICE BOOST offers for this match. Danny Graham to score first has been boosted to 12/1 from 8/1, while Man Utd to win 2¿]0 is now 7/1 from 6s. Head to the Sky Bet website for the full list of markets and don't forget you can bet in-play after kick-off.
So Hull are unchanged again following their 1-1 draw at West Brom, whereas Man United make a couple of changes from their victory over West Ham. Januzaj and Jones drop out, with Young and Fletcher coming into the line-up. It will be a first start for Fletcher for over a year following an extended layoff with illness. Welbeck has overcome injury fears and Carrick is fit enough for the bench.
As ever, we welcome your thoughts and predictions ahead of the game so please send emails to firstname.lastname@example.org if you want to have a say.
Hull team: McGregor, Bruce, Chester, Davies, Elmohamady, Figueroa, Meyler, Huddlestone, Livermore, Graham, Sagbo. Subs: Harper, Rosenior, Faye, McShane, Koren, Boyd, Fryatt.
Man United team: De Gea, Rafael, Evra, Evans, Smalling, Fletcher, Cleverley, Valencia, Young, Welbeck, Rooney. Subs: Lindegaard, Vidic, Fabio, Carrick, Kagawa, Januzaj, Hernandez .
Merry Christmas one and all and a very warm Boxing Day welcome to our live text commentary of Hull v Manchester United in the Barclays Premier League. Kick-off is 1245 GMT and we'll have the team news for you right away.
Updates will appear here...