Serena Williams loses US Open semifinal match via foot fault (video)
Defending U.S. Open Champion Serena Williams lost her composure Saturday night during a semi-final match against Kim Clijsters at the Ashe Stadium.
Clijsters was leading the 2nd set 6-5 when Williams was called for a foot fault that put her down 15-40.
Williams was pissed by the call and walked over to the lineswoman then cursed her out along with pointing and raising her racket. The 27-year-old had already been penalized for smashing her racket after losing the first set 6-4.
The lineswoman was called by the chair umpire to report what Serena said to her. Tournament referee Brian Earley soon appeared and called the match win by default. Clijsters won 6-4, 7-5!
2005 champion Clijsters will now take on Caroline Wozniacki from Denmark in the final.
Watch: Serena Williams Foot Fault