Aston Villa want loan signing Jermaine Jenas to tone it down in training.
Jenas, a deadline-day loan signing from Tottenham, is yet to feature for Alex McLeish's side after picking up a knock in training.
The midfielder has been ruled out for three weeks with an Achilles problem.
And Villa assistant boss Peter Grant said: "He came in during the first few days and he was excellent and gave the place a massive lift.
"He gave us something that we have not got.
"His talent is exceptional but unfortunately he was working so hard to try and get fit from one injury that he has picked up another one."