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 consecutive victories, all by first-round knockout. This marks Barbosa's 18th career win against 2 losses, with 17 of those wins coming by finish. Buzukja now holds a 1-4 record in the UFC, suffering his fourth loss in the promotion. The finish continues Barbosa's pattern of early stoppages throughout his career.