West Brom's Nacer Chadli has been ruled out for up to two months after the recurrence of his hip problem.
The forward limped off in the 3-1 defeat to Stoke last weekend and is now unlikely to return until March for the Premier League strugglers, who face Arsenal on Sunday.
Salomon Rondon is a doubt with a hamstring injury suffered in Boxing Day's 0-0 draw with Everton while James Morrison (Achilles) remains out.
Arsenal will remain without Olivier Giroud, Nacho Monreal and Aaron Ramsey for the trip to The Hawthorns.
Giroud and Monreal are expected to be absent until mid-January, owing to respective hamstring and ankle injuries.
Ramsey is also struggling with a hamstring problem.