Maguire has been out since October with a muscle problem he picked up in the game against Aston Villa and is not ready to play, but Martinez is free to return to the squad, Amorim confirmed.
He said at a press conference on Wednesday on whether the pair can play: "Not Harry, Licha is ready. He didn't stop too much time, so I feel he is ready. The situation is different to Harry's."
Asked about Yoro's condition, he added: "He is training. We believe a lot of him and we are preparing the best way to start with Leny."