UFC cuts fighter after sportsbooks flag 'unusual' betting activity on his first-round loss

UFC ring announcer Bruce Buffer said it was an "honor" to have the opportunity to step inside the Octagon at next year’s UFC event at the White House.

Another sports betting controversy has hit professional sports, this time in mixed martial arts.

The UFC has cut fighter Isaac Dulgarian on Monday, which comes two days after a first-round submission loss to Yadier del Valle at Fight Night in Las Vegas, according to multiple reports.

"Like many professional sports organizations, UFC works with an independent betting integrity service to monitor wagering activity on our events," the promotion told The New York Post in a statement. "Our betting integrity partner, IC360, monitors wagering on every UFC event and is conducting a thorough review of the facts surrounding the Dulgarian vs. del Valle bout on Saturday, November 1. We take these allegations very seriously, and along with the health and safety of our fighters, nothing is more important than the integrity of our sport."

CLICK HERE FOR MORE SPORTS COVERAGE ON FOXNEWS.COM

Yadier del Valle of Cuba secures a rear choke submission against Isaac Dulgarian in a featherweight fight during the UFC Fight Night event at UFC APEX on Nov. 01, 2025 in Las Vegas, Nevada.  (Chris Unger/Zuffa LLC)

Unusual betting activity was flagged for Bulgarian’s fight. Dulgarian, who is now 7-2 in his professional UFC career, was a -250 favorite, but the line moved drastically to -154 leading up to the fight.

Multiple sportsbooks flagged the unusual activity and stopped taking any bets on it before the first-round bell rang. Caesars Sportsbook even offered refunds to anyone who bet on Dulgarian.

UFC STAR COMES TO JOE ROGAN'S DEFENSE AFTER RONDA ROUSEY'S SWIPE

"Mobile customers with losing