Top 10 Toughest Floyd Mayweather Jr. Opponents

The Top Ten
1 Manny Pacquiao Emmanuel Dapidran Pacquiao is a Filipino professional boxer and politician, currently serving as a Senator of the Philippines. He currently ranks #4 in BoxRec's ranking of the greatest pound for pound boxers of all time.
2 Marcos Maidana

Why is he number one?

3 Jose Luis Castillo


4 Oscar De La Hoya Oscar De La Hoya is a former professional boxer who competed from 1992 to 2008. He holds dual American and Mexican citizenship.
5 Miguel Cotto

Great left hook to the body

Left hooking machine

6 Jesus Chavez
7 Carlos Hernandez
8 Emanuel Augustus
9 DeMarcus Corley
10 Zab Judah
The Contenders
11 Conor McGregor Conor Anthony McGregor (born 14 July 1988) is an Irish professional mixed martial artist and boxer. He is the former Ultimate Fighting Championship (UFC) featherweight and lightweight champion. more.
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