10 Rounds.

Round 10

McGregor is taking too much punishment and the referee steps in. It's over. Mayweather goes 50-0!

5:54AM

Mayweather wins by TKO in the 10th

He could no longer defend himself and the referee had to end it. Mayweather was hitting him at will, walking towards him, cutting off his space and left him with nowhere to go. He stayed on his feet  but his legs had gone  and his arms must have felt like lead