Joe Wright is unlikely to feature for Doncaster Rovers again this season after suffering an ankle injury in the win at MK Dons.
Wright was forced off late in the game after rolling his ankle.
While there has yet to be a full diagnosis of the injury, boss Darren Ferguson admits Wright’s season is over in all probability.
“He rolled his ankle and we don’t know how long he’ll be,” Ferguson told The Star.
“We need to wait for the swelling to go out of it.
“We’ve got two-and-a-half, three weeks to go, I think he’s going to be struggling to play again this season.”
Wright has been in fine form in recent weeks in his defensive partnership with Mathieu Baudry.
While confident he has the cover to deal with the 23-year-old’s absence, Ferguson says losing him is a big blow.
He said: “Joe’s been excellent. Him and Frenchie have done really well.
“They had a tough time on Saturday with the boy [Chuks] Aneke, who did very well for them and gave them a tough time.
“Andy Butler came off the bench and we’ve got Andy Boyle and Tom Anderson who’ve been fighting to get into the team.
“I’ve got enough cover there. No doubt about it.”
Matty Blair has been declared fit to face Bury on Tuesday night after suffering no signs of concussion following the head injury which forced him off early in the MK Dons clash.
“Blairy was fine,” Ferguson said. “He took a knock to the head.
“The way he played in the first 25 minutes I thought he took a knock to the head in the warm-up. He won’t mind me saying that.
“But I had to take him off because the medical staff were saying it was his head.
“He’ll be fine for tomorrow.”
Ferguson has pledged to make changes for the clash with Bury, whose relegation was confirmed at the weekend.
“We’ve got options and I’m going to take it game by game,” he said. “But there will be changes for Bury."
Ferguson confirmed Danny Andrew will play 45 minutes for the Rovers Development Squad in their clash with Mansfield Town at Rainworth MW on Tuesday, 1pm kick off.