WATCH: Alexia Thainara submits and retires Molly McCann at UFC London

John Davis

In a stunning display of skill and dominance, Brazilian prospect Alexia Thainara made an unforgettable UFC debut at London’s O2 Arena on Saturday, submitting hometown favorite Molly “Meatball” McCann via first-round rear-naked choke and prompting the British fighter’s retirement from mixed martial arts.

Despite taking the fight on less than two weeks’ notice, Thainara entered as the betting favorite on the strength of her impressive nine-fight winning streak and recent victory on Dana White’s Contender Series. The outcome validated those odds in dramatic fashion.

The contest lasted just over a minute on the feet before Thainara secured an effortless takedown. From there, the Brazilian quickly established full mount position and unleashed a barrage of heavy punches that forced McCann to turn over, exposing her back. Thainara capitalized immediately, locking in the fight-ending submission that left McCann with no choice but to tap.

“I’ve been preparing for this,” said Thainara, who reportedly learned about the opportunity last Friday and was on a plane to London just two days later. The victory improved her professional record to an impressive 11-1, with six of those wins coming by submission.

For McCann, the defeat marked the end of her UFC journey. The popular Liverpool native announced her retirement in an emotional post-fight speech, concluding a UFC career that featured a 7-7 record and four post-fight bonus awards, including two memorable spinning back elbow knockouts.

Thainara’s charisma was on full display throughout the event, from her entrance following “Sweet Caroline” to her playful pre-fight dancing. Her coach had advised her to “stay ready so she doesn’t have to get ready” following her Contender Series appearance, wisdom that clearly paid dividends in this short-notice opportunity.

Known for her wrestling pedigree, Thainara has demonstrated she’s equally comfortable throwing strikes. More impressively, she’s shown a knack for finishing fights, with her submission arsenal including three rear-naked chokes and three arm bars – two of which reportedly came just eight seconds into the first round of previous bouts.

The event, broadcast live on ESPN+, featured a welterweight title eliminator between Leon Edwards and Sean Brady in the main event, with former light heavyweight champion Jan Blachowicz facing Carlos Ulberg in the co-headline slot.

John Davis