Embattled Jamaican sprinter Nesta Carter has filed an appeal to the Court of Arbitration for Sports (CAS) after he was retroactively found guilty of doping at the 2008 Beijing Olympics, his lawyer said Wednesday.

Carter is awaiting a date to come before the CAS for his appeal, lawyer Stuart Stimpson said after confirming the appeal had been submitted to the Switzerland-based body within the 21-day deadline.

"Yes, they were sent electronically today and the hard copies (sent by courier) will get there tomorrow, so they (documents) have been filed," Stimpson said.

"We've paid our fees and we met our time line."

Carter retroactively tested positive for the banned stimulant methylhexaneamine in 2008 and on Jan. 25 was stripped of his 4×100-meter gold medal along with teammates Usain Bolt, Asafa Powell and Michael Frater.

The filing of the appeal came four days after the 2013 world championship 100-meter bronze medalist made his competitive return by anchoring his MVP track Club's 4x100 team to second place at the Milo Western Relays in Montego, ending 17 months of inactivity.

That came after clearance was given to him by the IAAF, the world track and field governing body.