West Ham manager Gianfranco Zola is awaiting news on Herita Ilunga and Carlton Cole ahead of Sunday's game with Everton.
Both players were forced off with suspected hamstring injuries during Wednesday's 2-1 victory over Aston Villa and Jonathan Spector and Zavon Hines are standing by to step into the starting XI.
Fabio Daprela and Frank Nouble will also be added to the squad. Radoslav Kovac is available again after serving a one-match ban but Luis Boa Morte (knee), Dean Ashton (ankle) and Calum Davenport (leg) remain long-term absentees with no date set for their return.
Midfielder Mark Noble admits their last-minute victory over Aston Villa on Wednesday was one of the most emotional moments of his career.
Noble put the Hammers in front against Villa with a 45th minute penalty but Ashley Young levelled six minutes after half-time.
Substitute Hines fired the winner in injury time to lift the struggling side out of the bottom three.
It was their first home win in the league this season and Noble is now looking forward to Sunday's clash with Everton at Upton Park with renewed heart.
Noble, still only 23, is in line to make his 100th league outing against the Toffees.
"Wednesday was important," said Noble. "I can say the moments I have been through with this club that was emotionally one of the best moments I have had. It was so good to be involved with that. It was a really tough game, really tough, but in the end I thought we deserved it.
"The confidence is up for Everton. We will rest well, train well and hopefully the fans will turn up like they did against Villa. It will be fantastic if they get behind us and drive us on to another win.
"It was so emotionally charged because we needed the win so much. It was brilliant and now hopefully we can kick on. It is an unbelievable feeling when you score a goal like that. You just feel like crying.
"We kept going and going. The crowd were unbelievable when they got the equaliser they still cheered us and they didn't get on our backs. I thought that is what we need with the moment we are going through.
"I feel I have got a right to say that because I am a West Ham fan myself and I have been brought up round here. But I thought they were unbelievable and we won that game partly because of them."
Russian winger Diniyar Bilyaletdinov is suspended for Everton.
Having been sent off last weekend against Aston Villa, he was able to play in the Europa League home defeat by Benfica, with the domestic ban starting at West Ham.
Former West Ham captain Lucas Neill and Dutchman John Heitinga, both ineligible for the Benfica game, come back into the squad but Louis Saha (calf) could miss out.
Tony Hibbert returned for the European match after flu but Everton will still be without long-term injured players Phil Neville, Phil Jagielka, Mikel Arteta, Steven Pienaar, Victor Anichebe, James Vaughan and Leon Osman.
Boss David Moyes admits his squad are beginning to feel the heat of playing a gruelling schedule of European matches and Premier League games.
The Toffees have now gone seven matches without a victory ahead of Sunday's clash and they are too close to the relegation zone for comfort.
Moyes, for the first time, concedes that he has occasional feelings of deep frustration that Everton are playing in Europe without the right resources, and their domestic form is suffering.
He said: "Regrets? I have tried not to have any regrets about it (playing in Europe).
"But the more and more games you play in it, the more and more times you realise that some other managers have talked a lot of sense about the number of games in the Europa League.
"With the squads we have got, us particularly, it is very difficult to win Premier League games when you have got so many midweek games.
"The word rotation gets used to make sure everyone is as fresh as they can be.
"But we do not have that depth of squad, so we could look back and say that Europe has been a hindrance to us.
"I don't like talking that way. I have always wanted to talk positively about playing in Europe, we always want to qualify.
"But undoubtedly it could be having some effect on the domestic results we are getting now."
