John McEnroe, the tennis champion and sports commentator, famous for his on-court fits of temper and a mouth that charges ahead of his brain like an unsupervised child, was a guest Tuesday night on Stephen Colbert's "Late Show."
McEnroe has a new book to promote, "But Seriously," so that mouth has had many opportunities of late to run out into traffic. In an interview with NPR, on Sunday's "Weekend Edition," McEnroe seemed to demean the abilities of Serena Williams.
"You are known for your outbursts on the court," Colbert said, wasting no time. "People think of you as an outrageous character at times, but you have stirred the pot in a way that you rarely have in the past because this weekend you topped yourself."