Floyd Mayweather stops Conor McGregor in 10th round of megafight

For awhile there, it looked like Conor McGregor was going to pull off an upset for the ages.
The UFC lightweight champion, making his professional boxing debut in a mega-fight against one of the greatest pugilists of all-time, won the first three rounds of his 154-pound bout against Floyd Mayweather Jr. at T-Mobile Arena in Las Vegas on Saturday night.But the 40-year-old Mayweather, an undefeated former champion in five weight classes, is known to start slow and pick up the pace as he goes. And