Burnley have appealed against defender Michael Duff's red card in Saturday's 1-0 defeat by West Ham.
Duff was sent off for a professional foul on Cheikhou Kouyate, conceding a penalty which Mark Noble scored.
But boss Sean Dyche said after the game: "It's impossible for it to be a red card. Jason Shackell is in position to go and cover."
If the appeal fails, Duff will miss Saturday's game at Hull - a game the Clarets must win or be relegated.
|Route to safety for the bottom five|
|Leicester (34 pts)||Hull (34 pts)||Sunderland (33 pts)||QPR (27 points)||Burnley (26 pts)|
|Southampton (H)||Burnley (H)||Everton (A)||Manchester City (A)||Hull (A)|
|Sunderland (A)||Tottenham (A)||Leicester (H)||Newcastle (H)||Stoke (H)|
|QPR (H)||Man Utd (H)||Arsenal (A)||Leicester (A)||Aston Villa A)|