Former UFC heavyweight champion Andrei Arlovski returned to the UFC at June 14’s UFC 174 from Vancouver, winning a very lackluster decision over Brendan Schaub.

“The Pitbull’s” second effort in his second stint in the Octagon played out much better at tonight’s (Sat., September 13, 2014) UFC Fight Night 51 from Brazil, as he knocked out No. 4-ranked Antonio “Bigfoot” Silva with a first round flurry of right hands and follow-up hammerfists.

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With the win, Arlovski will instantly supplant himself as a Top 10-ranked UFC heavyweight contender, and should be headed for a huge match-up in his next fight. Checks out the highlights and Arlovski’s post-fight interview courtesy of the Ultimate Fighting Championship below: