Friday, July 30, 2010 | 3:21 p.m.
Lightweight world champion Juan Manuel Marquez tipped the scales at 133.5 pounds during Friday's official weigh-in for his title fight against Juan Diaz this weekend at the Mandalay Bay Events Center.
If all goes well for Marquez, it might be the last time he weighs in that low the rest of his career.
A potential meeting with current junior welterweight champion Amir Khan awaits Marquez if he's able to defeat Diaz, who came in at 135 pounds.
While some fans are looking ahead to that potential matchup, Marquez says his focus is solely on what lies directly ahead of him.
"Right now, my mind is set on 135 pounds," said Marquez earlier in the week. "After the fight, we'll sit down and see what's next."
Marquez (50-5-1, 37 KO) defeated Diaz (35-3, 17 KO) via TKO in the ninth-round in their previous meeting Feb. 28, 2009. The fight was voted 2009 Fight of the Year by the Boxing Writers Association of America.
Golden Boy Promotions brought its biggest starts to Friday's weigh-in, including Khan, WBA heavyweight champion David Haye and former world champion Bernard Hopkins.
Professional basketball player Caron Butler also was in attendance and predicted a win for Marquez.
Saturday's card also features a middleweight world title fight between Daniel Jacobs (20-0, 17 KO) and Dmitry Pirog (16-0, 13 KO).
Doors open at the Mandalay Bay Events Center at 1:45 p.m. Saturday. The event also is available on HBO pay-per-view.
Full Main Card Results:
Jorge Linares (132.5) vs. Rocky Juarez (132)
Joel Casamayor (138) vs. Robert Guerrero (138.5)
Dmitry pirog (160) vs. Daniel Jacobs (159)
Juan Diaz (135) vs. Juan Manuel Marquez (133.5)