| Fight Name: | Mayhem |
| Fight Date: | September 13, 2014 |
| Location: | MGM Grand Garden Arena, Paradise, Nevada, U.S. |
| Titles: | WBC light middleweight title, WBA (Unified), WBC, and The Ring welterweight titles |
| Fighter1: |  Floyd Mayweather Jr. |
| Nickname1: | "Money" |
| Hometown1: | Las Vegas, Nevada, U.S. |
| Purse1: | $32,000,000[1] |
| Record1: | 46–0 (26 KO) |
| Height1: | 5 ft 8 in |
| Weight1: | 146+1/2 lbs |
| Style1: | Orthodox |
| Recognition1: | WBA (Unified), WBC, and The Ring Welterweight Champion TBRB No. 1 Ranked Welterweight WBA (Super), WBC, and The Ring Light Middleweight Campion The Ring No. 1 ranked pound-for-pound fighter 5-division world champion |
| Fighter2: |  Marcos Maidana |
| Nickname2: | El Chino ("The Chinaman") |
| Hometown2: | Margarita, Santa Fe, Argentina |
| Purse2: | $3,000,000 |
| Record2: | 35–4 (31 KO) |
| Height2: | 5 ft 7 in |
| Weight2: | 146 lbs |
| Style2: | Orthodox |
| Recognition2: | WBA No. 2 Ranked Welterweight WBC No. 3 Ranked Welterweight The Ring/TBRB No. 5 Ranked Welterweight Former welterweight champion |
| Result: | Mayweather Jr. wins via 12-round unanimous decision (115-112, 116-111, 116-111) |
Floyd Mayweather Jr. vs. Marcos Maidana II, billed as Mayhem, was a professional boxing match contested on on September 13, 2014, for the WBC light middleweight title and the WBA, WBC, and The Ring welterweight championship.[2]
The pair fought earlier that year at the MGM Grand. Despite the bout being closer than most Mayweather bouts, Mayweather won by Majority Decision. The fight with Maidana proved to be one of Floyd's tougher opponents, thus, the rematch seemed likely.[3] [4] [5] [6]
It was announced in July that rematch was to take place in September at the MGM Grand Garden Arena in Las Vegas, Nevada. Mayweather said at the time "I only see the outcome one way and that's another successful night for me and my team. I'm not one to give second chances in the ring, but I want to give the fans what they want to see. His style is difficult at best, but with experience comes a way and will to win."[7]
The fight was won by Mayweather via unanimous decision, with scores of 116-111 twice and 115-112.[8] [9]
On December 12, Mayweather proposed a May 2015, long muted bout with Manny Pacquiao.[10] They had twice before entered into negotiations, with Pacquiao pulling out in January 2010[11] and Mayweather refusing the bout in July 2010.[12]
On January 13, Pacquiao agreed to terms for the fight. On January 30, TMZ reported that the fight had been agreed upon by both sides and that a formal announcement would be made in the "next couple of days." However, members from both sides, including Bob Arum and Stephen Espinoza, refuted the report, saying that the deal had not been finalized yet and that negotiations on what would be a joint pay-per-view (Showtime–HBO) telecast of the fight were still clearing out the last significant issues before the deal could be finalized.
On February 20, Mayweather announced that the fight was official and a contract had been signed for a fight to take place on May 2, at the MGM Grand.[13]
This would the last bout of Maidana's career, he would announce his retirement two years later.[14]
Confirmed bouts:[15]
| Weight Class | vs. | Method | Round | Time | Notes | |||
|---|---|---|---|---|---|---|---|---|
| Welterweight/Light Middleweight | Floyd Mayweather Jr. (c) | def. | Marcos Maidana | UD | 12/12 | |||
| Lightweight | Mickey Bey | def. |  Miguel Vazquez (c) | SD | 12/12 | |||
| Super Bantamweight | Léo Santa Cruz (c) | def. | Manuel Roman | TKO | 02/12 | 0:55 | ||
| Middleweight | James de la Rosa | def. | Alfredo Angulo | UD | 10/10 | |||
| Junior welterweight | Humberto Soto | def. | John Molina Jr. | UD | 10/10 | |||
| Welterweight | Daniel Prussak | def. | Pablo Polanco | TKO | 04/10 | 2:45 | ||
| Cruiserweight | Andrew Tabiti | def. | Caleb Grummet | TKO | 6/6 | 2:01 | ||
| Junior welterweight | Wilberth Lopez | def. | Damian Alejandro Sosa | UD | 6/6 | |||
| Welterweight | Fabián Maidana | def. | Jared Teer | TKO | 1/4 | 2:07 |
| align=center | Country | align=center | Broadcaster |
|---|---|---|---|
| Main Event | |||
| Sport 1 | |||
| Sky Arena | |||
| RPC-TV | |||
| BoxNation | |||
| Showtime PPV |