Richard Gasquet attended a hearing at the Court of Arbitration for Sport to decide whether he must serve a longer ban.

The 23-year-old Frenchman failed a test for cocaine in March and served a two-and-a-half-month suspension.

He was then cleared in July after the International Tennis Federation's disciplinary panel accepted his explanation the drug got into his system after he kissed a woman at a nightclub.

However, the ITF, along with the World Anti-Doping Agency, appealed against the decision of their own panel and are seeking a ban of up to two years.

Gasquet, who is known for his elegant game, achieved a career-high ranking of number seven in 2007 after reaching the Wimbledon semi-finals but is now outside the top 50.

CAS are expected to announce their decision later this month.