The Championship side suffered a 1-0 loss to Rovers in the FA Cup on Saturday, but it was Diouf's reaction to Jamie Mackie's serious injury that annoyed Warnock.
The Senegalese forward issued a verbal volley at Mackie who was stretchered off and taken to hospital where it was confirmed he suffered a double leg break.
OUCH! Maybe the player can ask Aaron Ramsey how to deal with it.