Manchester United manager David Moyes has revealed Ashley Young is facing a spell on the sidelines after injuring his shoulder in the controversial collision with Tottenham goalkeeper Hugo Lloris at Old Trafford on Wednesday.
Young landed awkwardly as he leapt over Lloris' flying attempt to win the ball, which Moyes remains convinced should have resulted in a penalty for his team and a red card for the Frenchman.
"Ashley has got an injury that is going to keep him out for a time," said Moyes.
"It is a shoulder injury he received in the challenge by the goalkeeper. I am not sure how long it will be."Young's absence from Sunday's FA Cup third-round encounter with Swansea further fuels United's annoyance at Lloris getting away with his challenge.
Yet Moyes is not prepared to push for the widening of video technology beyond its current limit of determining whether shots have crossed the line or not.
"I wouldn't go down the route of video technology," said Moyes.
"I trust the referees to make the right decisions.
"They do make the wrong ones at times and I have not changed how I felt on Wednesday. I thought that was the wrong decision."
Moyes offered no further update on the fitness of Robin van Persie, who has missed six games with a thigh injury.
"We will let you know when he is ready," said the Scot.
Moyes insists the growing injury list will not affect his transfer window plans this month.
With Michael Carrick only just back after an Achilles injury and neither Rio Ferdinand nor Nemanja Vidic seemingly capable of playing an extended run of games, the Red Devils could easily find themselves short of bodies as the battle for honours intensifies.
Given there is already a clamour amongst fans for new faces - especially in midfield - there was a chance Moyes could be pushed into making a move when he wasn't intending to.
However, the Scot insists that will not happen.
"It won't change how we go about things," said Moyes.
"January is not an easy month to purchase in.
"We have a good, big squad that is getting stretched at the moment because of the number of games.
"But everybody picks up injuries at this time of year. We are no different and we will use the players."
Having to follow Sunday's FA Cup third round tie with Swansea by visiting Sunderland for the first-leg of the Capital One Cup semi-final just 48 hours later hardly helps the situation.
However, Moyes will not be playing a weakened team at the weekend given United's status as record 11-time winners of the competition, even if the last of those triumphs came a decade ago, when new Cardiff manager Ole Gunnar Solskjaer was still a player.
"If you are a club like Manchester United, you want to be involved in all the trophy-winning competitions," said Moyes.
"For this club not to have won the FA Cup for 10 years is a bit of surprise.
"It's something we will try to do and we will do everything we possibly can to try to get through on Sunday."