Mayweather won the much-ballyhooed, but eventually underwhelming, welterweight showdown against Pacquiao via unanimous decision to hike his record to 48-0.
Pacquiao dropped to 57-6-2 and admitted after the fight that he had injured his shoulder in training camp.
Mayweather's victory all but assured that he will be considered the greatest fighter of his generation, and solidified his grip on the top spot in the pound-for-pound list.
He also remains the No. 1 fighter in ESPN's welterweight rankings.
"The fight was a dud because it lacked any real drama or excitement, but that was mainly because Mayweather was so brilliant that he shut down Pacquiao almost entirely to roll to a crystal-clear unanimous decision," ESPN's Dan Rafael wrote.
"The victory in the legacy fight stamped Mayweeather as the unified welterweight world champion, the true pound-for-pound king, and the greatest fighter of the era he and Pacquiao have dominated for years," he added.
Pacquiao remains second in both the pound-for-pound and welterweight lists.
"Pacquiao got off to a solid start, but then Mayweather took him apart over the second half of the fight to win a unanimous decision in a forgettable fight," Rafael wrote.
Unbeaten junior featherweight Guillermo Rigondeaux of Cuba stays in No. 3 in the pound-for-pound lists, while middleweight champion Gennady Golovkin climbs one spot to No. 4. Mexican legend Juan Manuel Marquez dropped one spot to No. 5.
Roman Gonzalez (No. 6), Timothy Bradley (No. 7), Wladmir Klitschko (No. 8) , Sergey Kovalev (No. 9) and Miguel Cotto (No. 10) round out the top 10 of ESPN's pound-for-pound list.
source: www.abs-cbnnews.com
