Dustin Jacoby said he “heard the boos” just before he knocked out Vitor Petrino in highlight reel fashion at UFC on ESPN 63.

Is Dustin Jacoby a passable test for Vitor Petrino, who enters UFC Tampa on the heels of his first career loss?

Check out these photos highlighting Dustin Jacoby's knockout win over Vitor Petrino at UFC on ESPN 63 from Amalie Arena in ...

Dustin Jacoby is making a late play for Knockout of the Year. Jacoby punched a hole through Vitor Petrino -- and his way back ...

Manel Kape took three low blows from Bruno Silva at UFC on ESPN 63 but battled on and managed to get a stoppage win that ...

Ranking our five KO prop bets to make for UFC on ESPN 63, including the main event featuring Colby Covington and Joaquin ...

Joaquin Buckley put together an impressive performance destroying Colby Covington in the UFC Tampa main event. Here is a look ...

Everything you need to know about Saturday's UFC Tampa - Covington vs. Buckley fight card: Betting odds, line movement, picks ...

UFC on ESPN 63 takes place Saturday, and MMA Junkie has you covered with live round-by-round coverage and official results.

Dustin Jacoby pulled off an absolute shocker of a result at UFC Tampa, sleeping Vitor Petrino with one clean punch in round ...

Veteran striking talent, Dustin Jacoby snapped his two-fight losing skid tonight on the main card of UFC Fight Night Tampa -- ...

Vitor Petrino is ready get back on the horse after the most frustrating night of his MMA career. The Brazilian talent was a ...