Manny Pacquiao won a lopsided 12-round decision over Sugar Shane Mosley on Saturday night, retaining his WBO welterweight title with his 14th consecutive victory.

Pacquiao (54-3-2) didn’t get the knockout he wanted, but the Filipino Congressman retained his position the most dominant and exciting fighter in the sport, methodically beating Mosley (46-7-1) at the MGM Grand Garden in Las Vegas.

Pacquiao knocked Mosley down with a left hook in the third round, a punch that seemed to sap Mosley’s willingness to engage. Pacquiao ran after Mosley the rest of the fight, but the former champion who has never been stopped in 18 years in the ring managed to finish the 12th round on his feet.

Pacquiao won 120-108 on one scorecard, 120-107 on a second and 119-108 on the third. The Associated Press had him winning 118-110.

For Mosley, the fight was strikingly similar to his bout a year ago against Floyd Mayweather Jr. - except this time he didn’t even land a big punch like he did early on against Mayweather.

His biggest moment on this night came when referee Kenny Bayless mistakenly ruled that Mosley knocked Pacquiao down in the 10th round when he hadn’t even hit him with a punch.

The ruling seemed to spur Pacquiao on as he went after Mosley the rest of the round and again in the 11th. By then, the crowd was cheering “Knock him out, knock him out,” but Pacquiao - bothered by a cramp in his left leg since the fourth round - didn’t have enough to finish him off.

“It wasn’t my best performance,” Pacquiao had. “I did my best. I did not expect this result.”