Midfielder John-Joe O’Toole is a doubt for Tuesday night’s game at Plymouth Argyle after coming off just before half-time in the game against Scunthorpe United on Saturday.
“You know if John-Joe comes off it’s not something small,” said boss Jimmy Floyd Hasselbaink.
“His pain threshold is high and I fear he won’t be available on Tuesday but we will wait and see.
“We missed his presence in the second half on Saturday, he doesn’t do everything perfectly but he gives the team another dimension.
"Daniel Powell could be available, he is very close and we are hopeful on him. Alex Revell had an operation on his groin injury last week so he will be a few weeks and Sam Hoskins may be a week or so away."