Andrew Johnson is almost certainly out of Everton's Barclays Premier League clash with West Ham with the groin injury which forced him off at Fulham last weekend.
But Victor Anichebe's hip injury has improved and he could well be in the squad. Midfielder Tim Cahill (hip) remains a major doubt, but Manuel Fernandes has overcome a groin problem and could figure.
Thomas Gravesen has a knee injury which will keep him out. Jack Rodwell, 17, is likely to be in the squad after signing his first professional contract this week.
Striker James Vaughan has started his rehabilitation at the club's Finch Farm training complex following a knee operation in Colorado, but he will now be out until next season.
West Ham hope England defender Matthew Upson can shake off a niggling calf problem.
Midfielder Luis Boa Morte is available again following suspension, but striker Bobby Zamora is struggling to overcome painful blisters and Carlton Cole (dead leg) is also a concern.
Youngster Freddie Sears should retain his place in the squad after coming off the bench to score on his debut in the win over Blackburn last weekend, while defender Jonathan Spector will jet back from international duty with the United States to join the squad on Merseyside.
Goalkeeper Richard Wright has been loaned to Southampton, so Jimmy Walker is set to be on the bench.
Julien Faubert, Danny Gabbidon, Matthew Etherington, Lee Bowyer and Craig Bellamy are all continuing their rehabilitation, but will not yet be back in first-team contention.
Squads:
Everton: Howard, Hibbert, Neville, Yobo, Jagielka, Lescott, Baines, Valente, Arteta, Osman, Carsley, Pienaar, Fernandes, Anichebe, Cahill, Yakubu, Johnson, Wessels, Rodwell.
West Ham: Green, Neill, Ferdinand, Spector, McCartney, Solano, Parker, Mullins, Ljungberg, Ashton, Zamora, Walker, Cole, Boa Morte, Upson, Tompkins, Sears, Collison, Noble, Pantsil.