By Ryan Burton

Floyd Mayweather Jr. was money once again in the richest fight ever. Mayweather used his reach and his jab Saturday night to frustrate Manny Pacquiao, piling up enough points to win a unanimous decision in their welterweight title bout. Mayweather remained unbeaten in 48 fights with a win that cemented his legacy as the best of his generation.

Pacquiao did what he wanted to do, chasing Mayweather around the ring most of the fight. But he was never able to land a sustained volume of punches, often looking frustrated as Mayweather worked his defensive wizardry once again.

Two ringside judges scored the fight 116-112, while the third had it 118-110. The richest fight in boxing history -- a bout that made Mayweather at least $180 million -- wasn't the best. Far from it, with long periods where both fighters fought cautiously, looking for an edge.