Russell Westbrook and Patrick Beverley are at it again.

The two guards had to be separated during the Thunder's matchup with the Clippers on Tuesday.

Tuesday's altercation began when the two players went after a loose ball and Beverley undercut Westbrook in the backcourt.

After getting his feet taken out from under him, Westbrook looked back at Beverley with his hands out.

After Beverley was called for a foul, he started talking to Westbrook before the two began jawing back and forth.

Ultimately, according to The Athletic, police had to be brought onto the court to keep the two players separated.

Beverley and Westbrook have history going back to the first round of the 2013 playoffs, when Beverley, who was with the Rockets at the time, went for a steal against Westbrook and caught his knee on the way.

Westbrook tore his meniscus on the play, but the Thunder went on to win the series 4-2.

The Thunder won Tuesday's game 128-110. The two teams match up again Dec. 15.