Nottingham Forest striker Nathan Tyson is set to be sidelined with another hamstring injury.
The 26-year-old was dogged by similar problems last season, and now faces an anxious wait to determine the severity of his latest setback.
He was forced to sit out the Reds' 1-0 defeat to Sunderland on Wednesday, as well as a 0-0 draw with Everton last week.
Colin Calderwood is hoping the pacey front-man will be back in his plans before too long, but admits that the outlook is bleak.
"We are awaiting the results of Nathan's scan but it's obviously a problem with his hamstring again," the Forest boss told the club's official website.
"We've done quite a bit of work with him, and it's unfortunate because he felt he was in really tip-top condition.
"We'll get the results of the scan and we'll take it from there. Last season there were times when it looked like he would be out for a considerable period and he wasn't because we were able to manage the situation, and we're hopeful that might be the case again."