Marcio Barbosa knocks out Dennis Buzukja in first round at UFC debut

Marcio Barbosa successfully debuted in the UFC by knocking out Dennis Buzukja in the first round. Barbosa extended his winning streak to five fights, with all five victories coming by first-round knockout. Buzukja suffered his fourth loss in the promotion, bringing his UFC record to 1-4. The knockout is being considered for the year's best knockout compilation. Barbosa continues to demonstrate finishing power early in fights.