In the end, gravity told. Everything about this fight defied logic, bar the outcome. Conor McGregor won the first three rounds in a furious opening, but he punched himself out and spent the rest of the fight looking exhausted.
Mayweather gave the impression he was toying with the Irishman at times, but ultimately, McGregor heroically clung on until the tenth round.
Eventually, McGregor could not sustain a barrage of Mayweather shots at the beginning of the tenth round, and the referee stepped in to stop the fight before McGregor could hit the canvas. Here's the Floyd Mayweather knock out.
Floyd Mayweather Knock Out