Donaire believes Montiel is a tougher opponent than Rigondeaux

By Chris Williams: WBO super bantamweight champion Nonito Donaire (31-1, 20 KO's) hasn't fought WBA super bantamweight champion Guillermo Rigondeaux (11-0, 8 KO's), yet Donaire believes that Fernando Montiel and Abner Mares are tougher opponents than him. At this point, Donaire is guessing because he doesn't have any idea what it's going to be like