I'm Not The Baddest Chick In Tennis History-Serena Williams

We found the only person on the planet who DOESN'T think Serena Williams is the greatest female tennis player of all-time, and that would be ... Serena Williams.

Williams was at LAX when we asked her about Andre Agassi's claim she is, bar none, the greatest female player ever to pick up the racket.

Check out the clip ... Serena doesn't agree ... saying there's at least one, maybe 2 women who, in their prime, could take her out on the court.