Stoke City striker Mamady Sidibe is facing an anxious wait to discover whether his season has been ended by a cruciate knee ligament injury.
The Mali international had only just returned to full-fitness before twisting his knee in the warm-up before a reserve team game against Aston Villa on Monday night.
The Potters were hoping to have a definitive verdict on the extent of the injury on Wednesday but an initial scan has proved inconclusive.
"We don't know whether it's torn or ruptured, but they think it might be the cruciate ligament," admitted Sidibe.
"If it's only a slight tear then I could be back before the end of the season, but if it's ruptured then it will be months.
"It doesn't feel too good, but we'll see what the next specialist says.
"They're thinking about putting a camera in there to see if what the damage is but if it's nothing then it will take three weeks to get over the operation."