Marcio Barbosa knocks out Dennis Buzukja in UFC debut at Winnipeg

Marcio Barbosa scored a brutal first-round knockout over Dennis Buzukja in his UFC debut at UFC Winnipeg. The 27-year-old Brazilian improved to 18-2 and extended his winning streak to five, with all five victories coming by first-round finish. Barbosa has now finished 17 of his 18 career wins, including 15 knockouts and two submissions. Buzukja falls to 12-6 overall and has won just one of his last five fights, dropping to 1-4 in the UFC.