The UFC and FBI are actively working together on an investigation into unusual betting activity ahead of a fight last weekend in Las Vegas.

According to UFC CEO Dana White, the UFC was alerted by sports betting watchdog Integrity Compliance 360 (IC360) to abnormal betting interest in a featherweight bout between Isaac Dulgarian and Yadier del Valle at UFC Fight Night on Saturday. Dulgarian, who was around a -250 betting favorite, lost by first-round submission.

Multiple sportsbooks told ESPN that large bets came in on del Valle ahead of the fight. Caesars Sportsbook later posted it would refund bets on Dulgarian. The UFC released Dulgarian from the promotion shortly after the result and are now working alongside the FBI on a further investigation.

"[IC360] reached out and told us th

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