Queens Park Rangers midfielder Joey Barton and Liverpool striker Craig Bellamy had to be separated in the tunnel after the Reds' 1-0 win at Anfield on Saturday.
The pair confronted each other on the pitch after the final whistle before they were dragged away by teammates.
However, the row continued into the tunnel as the players had to be ushered into their respective dressing rooms, according to the Daily Mail.
Luis Suarez's goal earned the Merseyside club the three points during the match.