Anderson SilvavsChael Sonnen

The dominant Sonnen round 1-4

Chael Sonnen was a +600 underdog entering UFC 117 — Anderson Silva was the dominant middleweight champion riding a 12-fight UFC win streak. The expectation was a Silva first-round finish similar to his previous title defenses.

What happened instead: Sonnen took Silva down 60 seconds into round 1 and proceeded to land more strikes on a UFC champion than anyone before him. Across the first four rounds:

• Sonnen's takedowns: 5 successful takedowns, with Silva spending approximately 19 minutes on his back.
• Sonnen's ground-and-pound: an estimated 320+ significant strikes landed, including unprotected face strikes that opened cuts.
• Silva's offense: minimal — occasional upkicks, no real submission threats.
• Cards going into round 5: 40-36, 40-36, 39-37 — all in Sonnen's favor.

The round 5 submission

With approximately two minutes left in round 5, Sonnen committed to passing Silva's guard. Silva captured Sonnen's right arm in a triangle setup as the pass attempted to clear, then transitioned to an armbar from the triangle position.

The technical sequence:

• Closed guard with arm trap: Silva pulled Sonnen's right arm across his body.
• Triangle leg entry: Silva's right leg came over Sonnen's left shoulder.
• Armbar transition: rather than finishing the triangle (Sonnen's strong posture made the choke harder), Silva swept his hips and transitioned to an armbar.
• Hyperextension: Sonnen tapped immediately to avoid the elbow break.

The finish came at 3:10 of round 5 — meaning Silva had been losing the bout by approximately 19 minutes of in-cage time when the submission landed.

The technical lesson

The bout demonstrated two things:

• Sonnen's wrestling-and-strike-defense game plan was correct: takedowns + ground-and-pound from inside the guard is structurally the right approach to beat Anderson Silva. Sonnen executed the plan for four rounds.
• Silva's bottom game was elite: most BJJ specialists would not have caught the submission in that timing or position. Silva's BJJ black belt under Antonio Mendes (and his broader bottom-position experience) was decisive in the round 5 finish.

The combination — wrong-style fighter executing the correct game plan and losing because of one technical moment — makes the bout the canonical example of why MMA outcomes don't always reflect the broader competitive dynamics.

The aftermath

The rematch at UFC 148 (July 2012) went the opposite direction — Silva won by KO in round 2 with a clinch knee. The rivalry continued in commentary and post-fight interviews for years.

Sonnen's career arc — multiple title shots, the UFC 117 near-finish, the rivalry-driven marketing presence — established him as one of the most-marketable contenders in UFC history despite not winning a title.

Silva's UFC 117 win extended his middleweight title reign to 7 successful defenses. The reign continued through UFC 162 in July 2013 when Chris Weidman ended it via KO in round 2.

The UFC 117 round 5 finish is on every list of greatest UFC moments and remains one of the most-replayed submission sequences in MMA broadcasting history.