López entered the bout as the undefeated WBC champion, already regarded as one of boxing’s finest technicians.
The Mexican star was making his 20th world title appearance after years of successfully defending the WBC title with precise boxing and sound defense.
Across the ring stood Sánchez, the WBO champion with a 25-1 record. While talented and durable, the Puerto Rican faced the toughest challenge of his career against a champion many already considered nearly unbeatable.
From the opening bell, López demonstrated why. Rather than chasing Sánchez around the ring, López calmly waited for mistakes and punished nearly every one of them. His high guard, perfect balance, and razor-sharp timing allowed him to neutralize Sánchez’s offense almost immediately.
Sánchez briefly found success with a hook to the body in the second round, but López answered immediately with two right hands that dropped the Puerto Rican champion for the first knockdown of the fight. Sánchez beat the count, but López controlled the remainder of the round.
From that point on, López dictated the fight. He repeatedly slipped Sánchez’s attacks by inches before firing accurate counters down the middle. A right uppercut badly shook Sánchez in the third round, while a left hook staggered him again in the fourth. Frustration began to set in for the Puerto Rican, who abandoned his game plan and started winging wide punches in hopes of changing the fight with a single shot.
Instead, the wild attacks created even bigger openings for López.
Sánchez’s frustration eventually boiled over when he began forcing López’s head downward during exchanges, drawing a point deduction from referee Arthur Mercante Jr.
The finish came early in the fifth round.
López trapped Sánchez along the ropes and unleashed one of the most memorable combinations of his career. A vicious left hook highlighted the barrage, sending Sánchez crashing to the canvas for the second time. Although he managed to stand, he was visibly disoriented and unable to defend himself. Mercante stepped in and halted the contest at 1:58 of Round 5, giving López a technical knockout victory and unified championship status.
The performance reinforced López’s reputation as perhaps the greatest minimumweight champion the sport has ever produced. While many champions rely on speed or power, López combined elite footwork, impeccable timing, defensive awareness, and textbook punching technique into a nearly flawless package. Against Sánchez, every aspect of his skill set was on display.
Ironically, the unification proved short-lived. Shortly after the victory, López reportedly told Mexican media he wanted to give the newly won WBO championship belt to his father as a personal gift. The WBO interpreted those comments as a resignation from the title and stripped him without conducting a formal hearing. The organization quickly declared the belt vacant and ordered contenders Eric Jamili and Mickey Cantwell to fight for the championship, a decision López’s camp criticized for lacking due process.
The setback did little to slow his career. López continued defending the WBC title, later added the WBA belt after his rivalry with Rosendo Álvarez, moved up to light flyweight to win the IBF championship, and retired in 2001 with an astonishing 51-0-1 record.
For Sánchez, the defeat effectively ended his run among the division’s elite. He remained a respected fighter but never regained the momentum he carried into Madison Square Garden.
Nearly three decades later, López’s victory over Sánchez remains one of the signature performances in minimumweight history. It showcased “El Finito” at the absolute peak of his powers and further cemented his legacy as one of boxing’s few truly undefeated all-time great champions.
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