Crystal Palace loanee Mamadou Sakho could miss the remainder of the season with strained knee ligaments.
Scott Dann and James Tomkins are also sidelined, so Martin Kelly and Damien Delaney might be paired at centre-back.
Burnley will be without Joey Barton, who has been banned for 18 months, while defender Ben Mee is a doubt with a shin injury.
Stephen Ward should be fit after a knee problem, and Sam Vokes and Scott Arfield could also be available.
MOTD COMMENTATOR'S NOTES
Jonathan Pearce: "Nerves will be jangling for this.
"Realistically, Palace need one more win for safety.