Sebastien Haller and Felipe Anderson have picked up small knocks in Saturday's match with Manchester City and may miss out on his weekend's clash with Brighton & Hove Albion.
Haller and Anderson both started last weekend against the reigning Premier League champions, as the Hammers fell to Pep Guardiola's side, with Pellegrini revealing the duo's doubles to play against the Seagulls.
The West Ham United manager is offered to update on Captain Mark Noble. The midfielder missed out on last week's match with a calf injury, and no16 could return to training with the team next week.
We have small problems with Felipe Anderson and Sebastien Haller. They are recovering from the kicks that they had in the last game.
"Mark Noble is recovering from his calf injury," Pellegrini said. "I think that next week he wants to work with the team.
"We have small problems with Felipe Anderson and Sebastien Haller. They are recovering from the kicks that they had in the last game. That is the update on injuries.
"We'll see tomorrow about Anderson and Haller, we have some doubts."
Pellegrini offered a positive update on Jack Wilshere after midfielder was substituted against City for Robert Snodgrass.
The first person in his or her first job is in a hurry to get his or her first job with the Irons train.
Pellegrini added: "Jack is working without any problems with our squad.
"Everyone here has the freedom to work with another physio, but he works in the week with our team and I have no problem with that. He works with both as well so it's okay. "