John McEnroe isn't the only one who thinks Serena Williams would get crushed on the men's circuit -- Billie Jean King told us the exact same thing last year ... and backed it up with science. Of course, McEnroe's been getting killed over an…
TMZ Staff, TMZ
Tue, 06/27/2017 - 10:18am
John McEnroe isn't the only one who thinks Serena Williams would get crushed on the men's circuit -- Billie Jean King told us the exact same thing last year ... and backed it up with science. Of course, McEnroe's been getting killed over an…