The Grand Slam Committee said on Monday that World number one Serena Williams has been fined $175,000 and put on probation for two years for her foul-mouthed outburst at the U.S. Open.

The committee said a further major offence at a grand slam in the next two years would see her suspended from the U.S. Open in 2010, 2011 or 2012. The fine will be reduced to $82,500 if the 11-times grand slam winner commits no further major offence through 2011.

The only precedent for a player being banned from a grand slam event was when American Jeff Tarango walked off during a match at the Wimbledon in 1995 before launching into a verbal attack when he accused umpire Bruno Rebeuh of being corrupt. He was banned from Wimbledon in 1996.