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.
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.