Chelsea midfielder Lesley Ugochukwu is expected to be out for up to six weeks, handing returning loanee Andrey Santos an increased chance to stay in the squad.
Ugochukwu, 19, re-injured his hamstring on Christmas Eve away at Wolves having been sidelined for a month before the trip to Molineux.
Raz, Misha
Axel Disasi, and Moisés Caicedo battle it out. 
Deivid Washington.