Mayweather (49-0, 26 KOs) weighed in at 149.5 pounds, well under the
154-pound limit, while McGregor, who is making his pro boxing debut, came
in at 153 pounds. Mayweather, 40, who returns Saturday from a two-year
retirement, further cemented his prediction from days earlier that he would
close his career with a knockout.
“It won’t go the distance, mark my words,” he said.