Manchester United manager, Erik ten Hag has given injury updates on his squad, ahead of their trip to West Ham in the Premier League on Saturday.
Ten Hag, speaking to reporters on Friday, confirmed Casemiro and Lisandro Martinez will not be available for the game.
United will also be without Mason Mount, Harry Maguire and Victor Lindelof.
Ten Hag said: “We have some doubts, some illnesses during the week so we have to see who is available for tomorrow. Hopefully they are recovered, but we have to see.
“Casemiro and Lisandro Martinez are not available before Christmas, so mid-January we expect them back.
“Mason Mount is similar, into January. Harry Maguire, I expect him earlier and Victor Lindelof is not available. He has had surgery, so he will be out for a couple of weeks.”