The official called Williams out on a foot fault during her match against Kim Clijsters, which set Serena off BIG TIME.
Instead of continuing on with the game, the tennis champ made her way over to the line judge and bitched her out!!!!
Williams reportedly said, "If I could, I would take this … ball and shove it down your … throat and kill you", all while shaking her racket and a tennis ball at the judge!!!!
The line judge immediately relayed Serena's outburst to the umpire and tournament referee, but Williams ran over to the three of them and tried to claim she never told the judge she said she'd kill her!
Williams was penalized with a point penalty, and unfortunately the point cost her the game!
Explains tournament ref Brian Earley: "She was called for a foot fault, and a point later, she said something to a line umpire, and it was reported to the chair, and that resulted in a point penalty. And it just happened that point penalty was match point. It was a code violation for unsportsmanlike conduct."
Serena revealed in a press conference afterwards that she used to have a "real temper" which used to be waaaay worse than her unprofessional display of poor sportsmanship on Saturday.