Watch the highlights and analysis of Zepeda's record-breaking performance:

The loss was seen as a significant setback for the veteran, making a return to world title contention look difficult in a crowded 135-pound division.

This "statement victory" confirmed his status as an elite lightweight contender and moved him into position for a world title shot.

Diaz, a former IBF super featherweight champion, relied on his chin and timing, even briefly wobbling Zepeda in the later rounds. However, Zepeda's stamina never faltered, even in his first career 12-round fight. Impact on Careers

Zepeda set a new CompuBox record for the lightweight division by throwing 1,536 punches over 12 rounds, averaging 128 per round. He also broke records for total jabs attempted (787) and jabs in a single round (89).

The matchup between and William "El Camarón" Zepeda was a record-breaking lightweight clash where Zepeda’s relentless volume overwhelmed Diaz's veteran experience. Fight Overview

In their 12-round main event at the Pechanga Arena in San Diego, William Zepeda secured a lopsided victory with scores of 119-109, 119-109, and 118-110. Key Performance Analysis