Rudy Gobert has acknowledged the gesture which landed him a costly technical in the Minnesota Timberwolves' defeat to the Cleveland Cavaliers on Friday was "immature", though he refused to back down on his claim sports betting is influencing NBA officials.

The Timberwolves led the short-handed Cavs with just 27.8 seconds remaining in the fourth quarter at Rocket Mortgage FieldHouse when Gobert was pulled up for his sixth and disqualifying foul. 

The three-time All-Star responded by rubbing his fingers together in an apparent money gesture towards referee Scott Foster. 

Fellow official Natalie Sago spotted the gesture and hit Gobert with a technical, sending Cleveland's Darius Garland to the free-throw line to tie the game up at 97 apiece.

Garland finished with 34 points and Jarrett Allen added a career-high 33 including 10 in overtime, as the Cavs took full advantage of Gobert's loss of discipline to claim a 113-104 win.

Gobert is now facing the prospect of further punishment from the NBA, having told reporters that gambling is influencing the way games are being officiated.  

"I'll bite the bullet again," Gobert said. "I'll be the bad guy. I'll take the fine, but I think it's hurting our game. 

"I know the betting and all that is becoming bigger and bigger, but it shouldn't feel that way.

"It's not just one call. Everyone makes mistakes, but when it's over and over and over again, of course it's frustrating."

The Frenchman did concede that he was wrong to make the gesture at such a pivotal moment, adding: "My reaction, I think it was the truth, but it wasn't the time to react that way. 

"It cost my team the game. It was an immature reaction."

Minnesota coach Chris Finch missed the game after feeling unwell prior to tipoff, with assistant Micah Nori taking his place on the bench.

Nori was furious with Gobert for the timing of his technical, saying: "A technical foul with 27 seconds in the game, to be honest, is unacceptable. 

"That's who Rudy is, but you've got to be smart. He made a visual that was automatic. He was obviously frustrated, both teams were, but we have to be smarter."

The Timberwolves, who sit second in the Western Conference at 44-20, now head to Los Angeles to face the Lakers and the Clippers, while the Cavs host the Brooklyn Nets on Sunday.