Which fighter defeated Fedor Emelianenko at Strikeforce: Fedor vs. Werdum?

Fabricio Werdum defeated Fedor Emelianenko at Strikeforce: Fedor vs. Werdum.

The bout took place on June 26, 2010, in San Jose, California. Werdum submitted Emelianenko with a triangle-armbar combination only 69 seconds into the first round.

The result was one of the biggest upsets in heavyweight MMA because Emelianenko had been widely regarded as the sport’s leading heavyweight for much of the previous decade. He entered the fight with a long unbeaten run, while Werdum was known as an elite Brazilian jiu-jitsu practitioner and experienced heavyweight.

The loss ended Emelianenko’s celebrated unbeaten streak, although the exact length of that streak depends on whether certain early-career bouts and no-contests are counted. Werdum’s victory earned him the Strikeforce heavyweight championship opportunity, but the bout itself was a non-title contest.