John McEnroe refused to apologize to Serena Williams on CBS This Morning after saying she'd rank 700 in men's tennis

John McEnroe refused to apologize to Serena Williams on @CBSThisMorning after saying she'd rank 700 in men's tennis https://t.co/xeC5R5Acma pic.twitter.com/HBPIA5hlUu

— CBS News (@CBSNews) June 27, 2017