Nonito ''Filipino Flash'' Donaire retained his WBO and WBC bantamweight titles with a comprehensive unanimous decision over the previously undefeated Omar Narvaez at the WaMu Theater in Madison Square Garden on Saturday night. Although Donaire was a heavy betting favorite and expected by many to make short work of the 36-year-old Argentinian, Narvaez is a former WBO flyweight and super flyweight champion, with no less than 21 world championship fights under his belt, and was never going to be a pushover for Donaire.

There was some booing from the New York crowd as Donaire repeatedly failed to breach the high, tight defence employed by Narvaez. Despite being a natural southpaw, Donaire chose to box from an orthodox stance against the Argentinian lefty, looking to land the kind of devastating left hook that put paid to Fernando Montiel in two rounds eight  months ago, but to no avail. Nevertheless Donaire cruised to a landslide victory, winning by scores of 120-108 on all three ringside judges scorecards.

"I did my best and I'm sorry it didn't come out the way I wanted," Donaire told HBO after the fight. "I felt as much as great as he was, maybe he didn't come to fight. When I hurt him in the third round - I did the best I could. He wouldn't open up. He didn't come here to win."

Donaire had weighed in for the bout at a surprisingly light 116.5 lbs, just a little over the super flyweights limit, but was expected to weigh considerably more on fight night. At 5'7" tall, he had a significant height and reach advantage over the 5'3" Narvaez. The size factor, combined with 28 year old Donaire's edges in youth, speed, ability and power, contributed to the Argentinians safety-first tactics. "He never hurt me," Narvaez said after the fight. "I didn't feel any of his punches. I didn't think he was such a big deal."

Narvaez lost for the first time in 38 fights (19 KO's, 2 draws), while Donaire, who's only defeat was a five round points loss in his second pro bout, scored his 27th victory (18 KO's).

What next for the Filipino Flash? The fight that the fans want to see, and that Donaire's promoter Bob Arum wants to make is against former WBO super bantamweight and featherweight champion Juan Manuel Lopez of Mexico. The explosive punching Lopez lost his title in a shocking upset earlier this year when he was KO'd in 8 rounds by Mexican veteran Orlando Salido, but has since gotten back in the ''win'' column with a two round TKO over American Mike Oliver. 

4,500 fight fans filled the MSG Wamu Theater on Saturday night to seen Donaire vs Narvaez. If Bob Arum can make Donaire vs Lopez in early 2012, it will no doubt sellout the regular, legendary  Madison Square Garden and then some!