Controversial Australian goalkeeper Mark Bosnich lost his appeal against Chelsea's decision to fine him after he failed a drugs test.

"The Football Association (FA) can confirm that on Wednesday a disciplinary commission heard an appeal from Mark Bosnich against his doping conviction," said a statement from the FA on its website www.thefa.com

"The appeal board ordered Bosnich's penalty should remain and the appeal be dismissed.

"It was also decided that the player should pay the Appeal Board's costs."

The decision is another setback for the 31-year-old keeper who had launched a series of appeals against the sanctions meted out to him by the Premiership giants who sacked him following his test failure.

Bosnich has claimed his drink was spiked with cocaine by an unnamed woman in a club.

His initial appeal against his sacking from his STG42,000 ($A103,000) -a-week job at Stamford Bridge was rejected by the Football League appeals committee on June 13.

The FA had also handed him a nine-month suspension which runs until September 23.

Bosnich's 1999 move from Aston Villa to Old Trafford was earned on his outstanding form for the Birmingham side, but a bust-up at a lap dancing club and injury forced United manager Alex Ferguson to sign French keeper Fabien Barthez.

The former Sydney Croatia star's time at Chelsea was marred by injury and he was kept out of first-team football by Carlo Cudicini. He was treated for clinical depression before the positive test for cocaine.

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