Julio César Chávez vs. Greg Haugen

A Chávez–Haugen super lightweight title fight was originally announced in October 1992 to take place on December 5 that same year at Caesars Palace in the Las Vegas Valley. Organized by promoter Don King, the Showtime pay-per-view event was also set to include a WBC super welterweight title fight between Terry Norris and Simon Brown and a WBA super middleweight title rematch between Michael Nunn and Víctor Córdoba. However, only two weeks later, the entire card was cancelled due to rival network HBO airing an episode of HBO World Championship Boxing featuring James Toney, Iran Barkley and Roy Jones Jr. on the same day. On December 1, 1992, King announced a new event billed as The Grand Slam of Boxing scheduled to take place on February 20, 1993, in Estadio Azteca in Chávez's native Mexico. Headlined by Chávez and Haugen, the card was originally announced to once again include the Norris–Brown super welterweight title bout, as well as Julian Jackson defending his WBC middleweight title against Gerald McClellan and a WBC super featherweight title bout between Azumah Nelson and Gabriel Ruelas. However, Jackson was forced to pull out of his fight with McClellan due to an injury to his right hand and that fight was replaced with a WBA super middleweight fight between Nunn and Danny Morgan, while Brown required surgery for a detached retina and was replaced by Maurice Blocker. Leading up to the event, Haugen, a 25–1 underdog, engaged in frequent trash talk, insulting both Chávez and his home country of Mexico. When asked about his safety should he defeat Chávez before a reported 130,000 of his countrymen Haugen responded "First of all, I don’t think there’s 130,000 Mexicans who can afford to go." Haugen would also ridicule Chávez's 84–0 record, claiming that Chávez's undefeated record was a result of him facing "Nothing but stiffs" during the first 50 fights of his career also remarking "Every one of them was a cab driver from Tijuana." Attendance 132,274 spectators attended the event, setting the world record for the largest paid attendance at a boxing event, surpassing the first fight between Jack Dempsey and Gene Tunney at Sesquicentennial Stadium in 1926 which drew 120,557. Only the 1941 Tony Zale–Billy Pryor fight in Milwaukee's Juneau Park, which drew 135,132 was better attended, though that fight was free to the public. ==The fights==

Undercard The preclude to the PPV event saw stoppage wins for Félix Trinidad (WBC:6th, IBF:7th) and Gerald McClellan (The Ring:5th). Nunn vs. Morgan The first world title bout on the card saw WBA and lineal super middleweight champion Michael Nunn make the second defence of his title against No. 12 ranked Danny Morgan. Nunn had made his first defence only three weeks earlier, scoring a wide unanimous decision in his rematch with former champion Víctor Córdoba on January 30. Nunn was the prohibitive favorite, so much so that there was no betting line. The fight Nunn would score a 1st round knockout of Morgan, dropping him with combination to the head with 30 seconds to go in the round. Morgan make it to his feet but a straight left to the jaw sent him down again and this time he failed to beat the count. Nelson, a 2-1 favourite to win, was confidant of defeating the 22 year old Ruelas saying "We're going to handle this boy like a baby doll." The fight The bout was largely a tactical affair, with both fighters making the other miss frequently. Nelson landed a big rally at the end of the 1st round and finished the fight strong by landing some of his best punches. One judge scored even at 115–115, while the other two had it for Nelson 115–114 and 115–113, giving him a majority decision victory. The decision was booed by the partisan Mexican crowd. Aftermath Speaking after the bout Nelson said "I was too strong for the boy. In the 10th, 11th and 12th rounds, I was too strong. That's why I'm the professor and he is the student." Ruelas meanwhile left the ring immediately after the decision was announced and would later complain about Nelson headbutting him. Norris vs. Blocker The penultimate bout saw WBC light middleweight champion Terry Norris make the eighth defence of his title against IBF welterweight champion Maurice Blocker. Norris was a 12-1 favourite to beat Blocker with speculation linking him to a superfight against Chávez at the welterweight limit. During the build up Norris would state that "I think I'm the best fighter in the world." Main Event Chávez got off to a quick start, sending Haugen down to the canvas 25 seconds into the first round, and then proceeded to dominate the remainder of the fight. In the fifth round, Chávez would score a second knockdown after landing a combination to Haugen's body just past the midway point of the round. Haugen answered referee Joe Cortez's 10-count and was allowed to continue, but Chávez quickly attacked a clearly hurt and exhausted Haugen when the fight resumed. With Haugen nearly defenseless, Cortez stepped in and ended the fight at 2:02 of the round, giving Chávez the victory by technical knockout. ==Fight card==

Confirmed bouts: ==Broadcasting==