Serena Williams Loses U.S. Open Match for Threatening Line Judge: Serena Williams lost the U.S. Open quarterfinal to Kim Clijsters when she was penalized a point for threatening a line judge who called a foot fault. With the score 6-4, 6-5 and 15-30 in the 12th game of the second set, Williams double-faulted on a foot fault -- which appeared to be a bad call -- and then walked over to the judge and reportedly said, "I swear to God I'll fucking take this ball and shove it down your fucking throat! Do you hear me? I swear to God. You better be fucking glad that I'm not, I swear." After the line judge told the chair umpire what had been said, Williams was told about the penalty and responded, "I didn't say I would kill you." See the video and her post-match press conference. Here's another clip for lip readers and more details on who said what when. "Without a doubt, this penalty was warranted," wrote Tom Perrotta on Tennis.Com. Unfortunate quote by Williams afterward: "My idol is John McEnroe."