Cain VelasquezvsJunior dos Santos

The setup

UFC 155 in December 2012 was the heavyweight title rematch between defending champion Junior dos Santos (the November 2011 UFC on Fox 1 winner) and Cain Velasquez. The first meeting had been the UFC's network-television debut — JDS KO'd Velasquez in 64 seconds with an overhand right at UFC on Fox 1.

The rematch was 13 months later. Both fighters had been active — JDS defended the title against Frank Mir at UFC 146 (TKO round 1) and Velasquez had rebuilt confidence with a TKO win over Antonio Silva.

The pre-fight context: Velasquez's wrestling-and-cardio approach vs JDS's boxing technique.

The fight

Round 1: Velasquez's wrestling pressure produced two successful takedowns. JDS fought back to standing and landed striking shots but couldn't reverse the round. Velasquez's pace was clearly higher than JDS's.

Round 2: More takedowns and more pressure from Velasquez. JDS's striking output was reduced compared to the November 2011 bout. The cards swung clearly to Velasquez.

Round 3: Velasquez's pace continued. JDS was visibly fatigued. Multiple takedowns and ground-and-pound.

Round 4: JDS rallied briefly in the standing exchanges but couldn't generate the offense to threaten Velasquez. Two more takedowns by Velasquez.

Round 5: A continuation of the previous four rounds. Velasquez's wrestling-and-cardio dominance pushed the bout to the final bell.

The decision: unanimous (50-43, 50-44, 50-45) — Velasquez by UD. The 50-43 card was the most-decisive title-bout scorecard in heavyweight UFC history.

The technical pattern

The bout demonstrated:

• Wrestling-and-cardio at championship level: Velasquez's pace was higher than JDS's at every point in the bout.
• The redemption template: Velasquez had been KO'd by JDS in November 2011; the December 2012 rematch was a five-round demonstration of the structural template that should have produced a different result.
• JDS's career limit: the bout demonstrated that JDS's boxing was elite but his takedown defense and cardio weren't championship-level against a wrestler-with-cardio opponent.

The aftermath

The rubber match at UFC 166 (October 2013) confirmed the pattern — Velasquez TKO'd JDS in round 5 after another wrestling-and-cardio dominance. The trilogy ended 2-1 in Velasquez's favor.

The result:

• Velasquez reclaimed the heavyweight title: continuing his second reign through UFC 188 (June 2015) when Fabricio Werdum submitted him in Mexico City.
• JDS's career arc: he continued at championship level for several years (the UFC 211 rematch with Stipe Miocic, the Alistair Overeem bout) before transitioning out of UFC contention.

The historical significance

The UFC 155 bout is the dominant performance in modern heavyweight MMA history. The 50-43 card combined with the five-round wrestling-and-cardio masterclass is the canonical example of a championship-level fighter executing a complete game plan over 25 minutes.

The technical lesson — that wrestling and cardio at championship level can structurally beat elite boxing — has shaped subsequent heavyweight matchmaking. Modern heavyweight contenders are evaluated partly on whether they can match the Velasquez template (wrestling base + championship cardio + striking adequate to set up the takedowns).

The bout's place in UFC heavyweight history is alongside the Lesnar-Velasquez generational handoff (UFC 121) and the modern Aspinall-Jones lineage as one of the structural turning points.