The versatile defender missed Saturday's 1-1 draw with Walsall after twisting his knee and boss Steve Evans confirmed he has got the problem checked out further.
However, Evans does not believe it to be serious.
"Mark Bradley twisted a knee and we will get him scanned as early as possible to see how he is," he said. "When you say the word 'scan' people get scared but he is walking around so there is nothing to worry about there."
On-loan James Tavernier also missed the clash with the Saddlers through injury and Evans also played down any fears with that.
"James blocked a shot in training in our last session and twisted his ankle, but he will be fine for next Saturday."