Russell Westbrook Gets Into Confrontation W/ Fan, 'Watch Your Mouth M |

Russell Westbrook got into a heated confrontation with a fan Sunday night ... and, at one point, told the man, "Watch your mouth, motherf***er," and it was all captured on video.

It all went down during game 1 at the Footprint Center in Phoenix ... Russ, on video, repeatedly told the guy wearing Suns gear to watch his mouth as the two exchanged words.

Russ is such a good dude. pic.twitter.com/Tec7lj7BE0

— Blake Christopher (@BCH66223) April 17, 2023 @BCH66223

It's unclear what led to the encounter ... but it happened in the club area during halftime of Game 1 of the Clippers-Suns first-round matchup.

According to a Suns insider, visiting players have been going through the club area where the incident occurred all season to get to the visitor's locker room.

I'm sure you've seen the Russell Westbrook/#Suns fan interaction by now, but visiting players have been going through the club area to the visiting lockerroom all season.

It's been used as a short cut to the visiting lockerroom. #ClipperNation #NBAPlayoffs pic.twitter.com/HGpOUu0105

— Duane Rankin (@DuaneRankin) April 17, 2023 @DuaneRankin

As for the game ... Westbrook struggled to hit shots all night, scoring just nine points on 3 of 19 shooting from the field.

However, the former MVP was a presence on the glass, securing ten rebounds and making the game's defensive play, blocking Devin Booker's shot and sealing the deal for the Clippers.