Nate DiazvsConor McGregor

The setup

UFC 196 in March 2016 was the McGregor moving-up-to-lightweight bout that became a welterweight bout when Rafael dos Anjos withdrew with a broken foot. Nate Diaz accepted the bout on 11 days' notice at the 170 lbs welterweight catchweight.

McGregor was the reigning featherweight champion. Diaz was a UFC veteran returning from injury — his last bout had been UFC on Fox 17 (December 2015).

The fight

Round 1: McGregor opened with the counter-left attack that had finished José Aldo at UFC 194. The strike worked for the first three minutes — McGregor landed multiple clean counters and visibly hurt Diaz. By the round's end, Diaz had taken substantial damage but was still standing and counter-striking.

Round 2: McGregor's pace dropped noticeably (the size disadvantage and the volume of strikes thrown at featherweight pace caught up). Diaz pressed forward with a high-volume jab attack that McGregor couldn't slip cleanly. At approximately 4:00 of round 2, Diaz dropped McGregor with a 1-2 combination. The follow-up:

• Diaz took mount: traditional BJJ position transition from the post-knockdown scramble.
• McGregor gave up his back: defending the strikes from mount.
• Rear-naked choke: Diaz locked the choke from back control with hooks in.
• McGregor tapped: the submission finished at 4:12 of round 2.

The technical pattern

The bout demonstrated:

• Diaz's championship-level cardio: he absorbed McGregor's round 1 strikes and recovered to dominate round 2.
• McGregor's size disadvantage at 170: featherweight-conditioned cardio didn't translate to the welterweight pace.
• The submission timing: Diaz's BJJ black belt produced the rear-naked choke entry that McGregor's wrestling-and-BJJ defense couldn't escape.

The aftermath

The rematch at UFC 202 (August 2016) went the other way — McGregor won by majority decision in a five-round bout. The trilogy bout has been negotiated multiple times but never scheduled.

The Diaz-McGregor rivalry produced:

• UFC 196 PPV: 1.5M buys at the time the second-highest in UFC history.
• UFC 202 PPV: 1.65M buys, exceeding UFC 196 and confirming the rivalry's commercial value.
• McGregor's first UFC loss: removing the undefeated marketing narrative.
• Diaz's championship-eligibility return: he became one of the most-marketable contenders in UFC history despite never winning a title.

The Diaz brothers' (Nate and Nick) broader cultural impact — their straight-talking, anti-corporate marketing persona — became the template for subsequent UFC characters who built marketing presence outside the standard champion-pursuit pathway.

The technical lesson

The UFC 196 bout taught the broader MMA community:

• Featherweight conditioning doesn't transfer to welterweight at championship pace.
• McGregor's defensive grappling was the structural ceiling on his career: the back-take and rear-naked choke pattern emerged again at UFC 229 against Khabib.
• Diaz's bottom-position offense was championship-level: rare for a striking-base UFC veteran.

The bout remains one of the most-watched MMA matchups of the 2010s and is on every list of significant single-fight cultural moments in UFC history.