Fenlon declined to comment on the reported incident involving Leigh Griffiths at the training ground and would not discuss a reported fine for Martin Scott after the midfielder was said to have missed a training session.
"I'm only here to talk about football and that's it," Fenlon said ahead of tomorrow's Dundee United match.
"Whatever happens in here, as far as I'm concerned, will stay in here. If other people want to go outside, that's fine. We'll put a stop to that fairly sharpish."