Sonnen submits Shogun Rua in first round at UFC

Chael Sonnen, left, sinks in the battle-winning choke against Mauricio 'Shogun' Rua, of Brazil, during their UFC on Fox Sports 1 mixed martial arts light heavyweight bout in Boston, Saturday, Aug. 17,2013. Sonnen won via first circular tapout via guillotine choke.

Chael Sonnen (29-13-1) did exactly what everyone expected him to do: He outwrestled Mauricio Shogun Rua (21-8). Then he did what was almost unthinkable. He submitted the former UFC light heavyweight champion in the first round. The bout served as the main event of Saturdays UFC Fight Night 26: Shogun vs. Sonnen card at Bostons TD Garden.