WINNIPEG, MANITOBA - APRIL 18: (L-R) Marcio Barbosa of Brazil knocks out Dennis Buzukja in a featherweight fight during the UFC Fight Night event at Canada Life Centre on April 18, 2026 in Winnipeg, Manitoba.

Watch: Barbosa flattens Buzukja with highlight-reel KO at UFC Winnipeg

2 days ago

Chris Unger / UFC / Getty

WINNIPEG, MANITOBA - Marcio Barbosa made a statement in his Octagon debut, clobbering Dennis Buzukja with a first-round knockout in the featured preliminary bout of UFC Fight Night at Canada Life Centre.

Barbosa landed a lethal left hook that immediately put Buzukja to sleep.

For Canadian viewers:

MY GOODNESS 😱 #UFCWinnipeg

🇧🇷 Marcio Barbosa with the exclamation point in the first!! pic.twitter.com/hbQEkzrTEW
— UFC Canada (@UFC_CA) April 18, 2026

For U.S. viewers:

MARCIO BARBOSA ONE PUNCH KNOCKOUT!!!

📺 @paramountplus pic.twitter.com/yo777moCQn
— UFC on Paramount+ (@UFConParamount) April 18, 2026

Barbosa, a 27-year-old Brazilian, is now riding a five-fight winning streak, all first-round knockouts. The victory lifted his professional MMA record to 18-2.