Sean O'Malley

After losing by TKO to Marlon Vera at UFC 252, O'Malley repeatedly claimed over several years that he still considered himself undefeated, attributing the loss to an unusual leg nerve injury rather than Vera's superiority.

State of the evidence

Documented

Attribution

Directly implicated

O'Malley explained on a podcast that he could have sexual relationships with other women because he was famous, earned the household income and treated his partner Danya Gonzalez 'like a queen'. He also referred to Andrew Tate when discussing the role of status.

State of the evidence

Documented

Attribution

Directly implicated

O'Malley officially defeated Petr Yan by split decision at UFC 280. The result provoked considerable controversy: numerous fighters and the vast majority of published media scorecards favoured Yan.

State of the evidence

Documented

Further traces of ostarine led to O'Malley's withdrawal from UFC 239 and a second anti-doping case. USADA found a second violation but no evidence of intentional use; the pattern of low concentrations was consistent with persistent supplement contamination. He received a reduced six-month sanction.

Attribution

Directly implicated

Sean O'Malley tested positive for ostarine in out-of-competition samples taken on 5 September and 8 December 2018. USADA treated the two results as one first violation and imposed six months' ineligibility from 19 September 2018.

State of the evidence

Documented

Attribution

Directly implicated