Burnley boss Brian Laws will be without defender Danny Fox for the home clash with Watford but striker Martin Paterson is hoping to be passed fit.
Fox was stretchered off with suffered suspected ankle ligament damage following a heavy fall in the second half of Tuesday's 1-1 draw at home to Doncaster.
And Paterson was replaced at half-time after picking up a thigh strain just before the break, but he has responded well to treatment.
"Danny is the more serious one," said Laws. "There is a bit of swelling there and he's certainly out for the weekend.
"Martin Paterson has made a good recovery over the last 48 hours. Fingers crossed if he continues the recovery as he is then he has a great chance for the weekend."
Central defender Andre Bikey will return after a rib injury which has seen him miss Burnley's last two games and Brian Easton is set to deputise for Fox at left-back.
Watford winger Don Cowie is close to making a return as they travel to Burnley.
The Scotland international has been badly missed since injuring his knee six games ago, but is back in training and could face the Clarets.
Manager Malky Mackay will assess the player after training on Friday before deciding if he will travel.
Striker Danny Graham gave the Hornets a scare when he picked up an ankle knock in the defeat at Crystal Palace in midweek but the former Middlesbrough man has been passed fit and will start at Turf Moor.
The Hornets have gone four games without a win which has seen them slide down to 13th place in the Championship table.