Aston Villa are hoping striker Gabriel Agbonlahor's early withdrawal from the Europa League loss to Rapid Vienna will help avoid another lengthy spell out of action.
Villa exit Europa League
But it is another concern for caretaker boss Kevin MacDonald, who admitted another forward in John Carew is struggling to play a full part because of an ongoing knee problem.
Agbonlahor returned after missing the first three games of the campaign with hamstring and back problems.
After scoring the opener, he suffered tight calf muscles and was substituted five minutes before half-time in the 3-2 second-leg loss which saw Villa miss out on the group stages of the Europa League, losing 4-3 to Rapid on aggregate.
MacDonald said: "Gabby's calves were very tight and so we felt it was best to take him off earlier rather than later in case it tended to go into a calf strain which might put him out for a few weeks.
"We are hopeful it might only be a little bit of tightness at the moment but we will not be able to tell until later on Friday. He is a major player for this club and we need to get him fit and keep him fit for as long as possible."
Carew was Villa's top scorer with 17 goals last season but MacDonald admitted: "John has got this ongoing (knee) injury that we have to keep managing. He can't play three games in a week at the moment."