: Mayweather retired shortly after (un-retiring later for McGregor), while Pacquiao continued fighting at elite levels for several more years.
: Pacquiao revealed he had fought with a torn rotator cuff in his right shoulder, an injury sustained during training that he re-aggravated in the fourth round. Mayweather also faced scrutiny for receiving a retroactive "therapeutic use exemption" for IV fluids prior to the fight. Financial & Cultural Impact mayweather vs. pacquiao
For over five years, the fight was considered the "greatest clash that never happened" due to repeated negotiation collapses. : Mayweather retired shortly after (un-retiring later for
: Talks first fell apart over drug testing protocols. Mayweather demanded Olympic-style random blood and urine testing via USADA, which Pacquiao's camp initially resisted, leading to a defamation lawsuit. which Pacquiao's camp initially resisted