Floyd Mayweather Jr. still has challenges left at lightweight.
Floyd Mayweather Jr. and Wladimir Klitschko are showcased in separate fights this weekend.
The decision has been questioned by many, but Max Kellerman says Mayweather beat Castillo.
Angel Manfredy lost to Paul Spadafora, continuing a string of excuse-laden defeats.
Max Kellerman writes that even though Joel Casamayor lost to Acelino Freitas, Casamayor is better.
ESPN2 Friday Night Fights studio analyst Max Kellerman throws punches each week in his own column.