From Boxrec Boxing Encyclopaedia
Announcer: Michael Buffer
Promoter: Golden Boy Promotions and both Mayweather and Marquez Promotions
Aired On: HBO Pay-Per-View "Number One/Numero Uno" (Main Event)
- Floyd Mayweather Jr. 39-0 (25 KOs) vs. Juan Manuel Marquez 50-4-1 (37 KOs)
- Marquez, a 2.5-1 underdog, entered as the # 2 pound-for-pound fighter and the # 1 lightweight in the world according to The Ring Magazine. Mayweather, who ranked as the # 1 pound-for-pound fighter in the world prior to his temporary retirement, was unranked by the publication due to inactivity.
- For Mayweather Jr., it was his first bout in a year and nine months following his temporary retirement. Marquez was coming off his world title knockout victory over Juan Diaz seven months earlier.
- It was Mayweather Jr.'s seventh bout and third consecutive to take place at the MGM Grand in Las Vegas, Nevada. For Marquez, it was his fourth bout at the venue.
- The fight, originally scheduled for July 18th, was postponed due to a rib injury suffered by Mayweather Jr.
- According to Keith Kizer, executive director of the Nevada State Athletic Commission, the bout was supposed to have a weight limit of 144 lbs. When Mayweather Jr. weighed in two pounds over the contracted weight, he was forced to pay Marquez $600,000 ($300,000 per pound).
- Reports indicated that Mayweather received a guaranteed $10 million for the bout, while Marquez earned a guaranteed $3.2 million. These figures did not include revenue from pay-per-view sales.
- In buildup for the fight, HBO aired it's series "24/7" in which it briefly chronicled the two fighters' training and preparations for the bout. In episode three, Marquez was shown to be allegedly drinking his own urine. He said it was something he had done for the last five or six fights because he felt it was a way to recycle important vitamins and proteins and as he said, "...why not drink them again instead of wasting them."
- During training for the bout, Mayweather Jr.'s uncle and trainer Roger Mayweather was arrested on felony coercion and battery-strangulation charges at a Las Vegas apartment in an attack on a female boxer he once trained.