Russell Westbrook was caught on camera telling a Utah Jazz fan that he would "f---" him up during the Oklahoma City Thunder's 98-89 win over the Utah Jazz.

"I promise you. You think I'm playing. I swear to god. I swear to god. I'll f--- you up; you and your wife. I'll f--- you up...I promise you, everything I love," yelled Westbrook at the fan.

Westbrook clarified his reasoning following the game, saying that the fan told him to "get down on my knees like you used to."

The fan, meanwhile, said he told Westbrook to "sit down and ice your knees."