Floyd Mayweather Jr. vs. Marcos Maidana II

Floyd Mayweather Jr. vs. Marcos Maidana II, billed as Mayhem, was a world championship boxing match held on September 13, 2014, in the MGM Grand Garden Arena in Las Vegas, United States.

The fight was won by Mayweather via unanimous decision, with scores of 116-111 twice and 115-112.

Background
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.