'Filipino Flash' Nonito Donaire attempts to win his fourth world title in three weight classes when he takes on big punching Puerto Rican Wilfredo 'Papito' Vazquez Jr for the vacant WBO super bantamweight title at the Alamodome in San Antonio, Texas tonight. Donaire vs. Vazquez Jr is part of a world championship doubleheader at the Alamodome, along with the Julio Cesar Chavez Jr v Marco Antonio Rubio WBC middleweight title fight. Most fight fans are more than familiar with the phenomenally talented Donaire, who most experts rank as the fourth best pound-for-pound boxer in the world behind Manny Pacquiao, Floyd Mayweather Jr and Sergio Martinez. Indeed, many boxing pundits already rank Donaire as the third best fighter on the planet, and a nailed on certainty to become 'Top Dog' sooner rather than later. The Filipino has often expressed his ambition to climb the weight divisions and ultimately win a world title at welterweight just like his idol and countrymen Pacquiao.