Footballer managers Neil Warnock and Dave Jones were involved in a war of words after Warnock applauded the Leeds fans following the match against Sheffield Wednesday.
One of the Leeds supporters shoved Wednesday goalkeeper Chris Kirlkland in the face during the game.
"I've had a go at Neil (Warnock). I know it's their fans but you don't go and wave at them after they've done that," said Wednesday boss Jones.
But Leeds manager Warnock retaliated: "Dave (Jones) was saying we shouldn't thank the crowd. Our crowd were fantastic tonight, we've got one moron."
A hooligan who ran on to the pitch and assaulted a goalkeeper during a Championship football match has been identified by police.
South Yorkshire Police have vowed to work with Leeds United and Sheffield Wednesday to find the fan who assaulted goalkeeper Chris Kirkland.