West Brom manager Roy Hodgson will be without Somen Tchoyi.
Tchoyi has remained in Cameroon after his wife fell ill while he was on international duty last week.
Fellow midfielder Graham Dorrans will also be absent as he continues to recover from an ankle injury.
Liverpool captain Steven Gerrard could be back to face former manager Roy Hodgson's side.
The midfielder underwent surgery on March 10 but returned to training this week and a late decision will be made on whether to play him at the Hawthorns.
Defender Fabio Aurelio also trained this week after almost a month out with a hamstring injury but he is unlikely to make the squad, while fellow full-back Martin Kelly has encountered a problem with a similar injury and is still out.
Midfielder Jonjo Shelvey is also back with the squad after a knee operation in February, while forward Luis Suarez is set to continue in the starting line-up after showing no ill-effects from the groin problem which forced him to miss Uruguay's two recent friendlies.
WBA (from): Carson, Cech, Ibanez, Morrison, Barnes, Brunt, Mulumbu, Reid, Myhill, Fortune, Shorey, Thomas, Zuiverloon, Meite, Odemwingie, Fortune, Scharner, Thomas, Cox, Vela, Tamas, Olsson, Jara.
Liverpool (from): Reina, Carragher, Skrtel, Agger, Johnson, Lucas, Gerrard, Spearing, Kuyt, Meireles, Suarez, Carroll, Gulacsi, Kyrgiakos, Wilson, Poulsen, Rodriguez, Cole, Ngog, Flanagan.