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UFC president Dana White confirmed that the organization has been in talks with the FBI over "unusual" betting activity on a fight involving fighter Isaac Dulgarian.

Dulgarian was the heavy favorite heading into UFC Fight Night 263 over the weekend but stunningly lost in the first round by submission. It was the first stoppage loss of his career.

But behind the scenes and prior to the fight, White was contacted by Integrity Compliance 360 (IC360) over what he called "unusual" betting action that reportedly saw wagering interest on opponent Yadier del Valle to win in the first round.

White told TMZ Sports on Tuesday that they contacted Dulgarian and his attorney before the fight to question him over their concerns.

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