"Chris has been sent back from Scotland as a precautionary measure to be assessed by our medical team," Wolves head of medical department Steve Kemp told The Express & Star
"We don't think it's anything too serious but we'll monitor him over the next couple of days to see how he goes.
"There's no major injury trauma there and the main thing is that it's a precautionary step.
"It gives Chris a chance to be involved for us on Monday.
"Sylvan's done very well. He came back with a minor tear to his calf and has been in intensive rehab ever since.
"He's been improving on a day-to-day basis and should be able to go back into training over the next couple of days.
"We'll see how he reacts to that."