Tony Mowbray reckons he'll have Darragh Lenihan available to him when Rovers make the journey down to Milton Keynes on Monday.
Darragh had to be taken off in the first half after what looked like an unfortunate fall against Bradford City on Thursday evening.
But with a few days having passed since then, the boss believes the 24-year-old will be able to play a part against the Dons.
"Listen, he's a big loss to the team because since he's come back he's been a bit of a man mountain," Tony told iFollow Rovers. "He's fast, powerful and confident.
"He's taken a knee to the lower back which I think is just a bit of bruising really. He'll be fine, I hope. We'll see how it settles down as sometimes it can be numb and sore."
And Mowbray added that fellow defender Charlie Mulgrew could return to action after not being risked against Bradford after being on international duty with Scotland in Hungary just two days before the clash against the Bantams.
"As soon as I saw he had played the second 90 minutes in Hungary I was preparing for life without him. He got back into Edinburgh airport at 3.30am on the Wednesday, had no sleep and drove down here. We didn't prepare with Charlie in mind.
"He's played two games in a short period of time for Scotland and with us also having two games in a short period I was never going to play him."
It is expected that Mulgrew will be included for the trip to Stadium MK and the same could be said for experienced frontman Danny Graham, who was another key figure to not play a part against Simon Grayson's Bradford outfit on Thursday.
"I think Danny's pretty confident he should be ready for Monday. He just had a back spasm I think, rather than it be his ribs," Mowbray added.
"He had a fitness test before the game and it wasn't worth the risk.
"Dominic Samuel is chomping at the bit and he hasn't done a lot wrong, but Danny has been so prolific, particularly at home, that he's had to sit on the bench.
"With Bradford playing with a back three, I felt that the athleticism of Marcus Antonsson, Adam Armstrong and Dominic Samuel was always going to give them some problems, so I had no problems with that, and hopefully Danny will be ready for Monday."