Boston Celtics point guard Isaiah Thomas counts boxing superstar Floyd Mayweather as a good friend, and the two regularly work out together during the summer.

It’s not often that Mayweather experiences a loss, but that’s exactly what Thomas handed the king of the ring during a recent game of pickup hoops.

.@celtics guard @Isaiah_Thomas defeats @FloydMayweather in… basketball. ALL ACCESS airs tomorrow at 10:30PM ET/PT. https://t.co/aeAcML5Woz

— SHOWTIME SPORTS (@SHOsports) August 27, 2015

“Money” Mayweather’s endless stream of good-natured trash talk came back to haunt him in the end.