One of two doctors implicated in the drug overdose death of 'Friends' star Matthew Perry has pleaded guilty in a US court. Mark Chavez, 54, could face up to 10 years in prison after admitting to conspiring to distribute ketamine in the weeks leading up to the actor's death. Perry was found dead in the pool of his Los Angeles home in October last year.

Chavez is the third of five defendants to plead guilty in connection with Perry's death, which stunned millions of fans worldwide. The other two defendants, a doctor accused of administering the anaesthetic to the troubled actor multiple times before his death, and a woman alleged to be a dealer to Hollywood celebrities, have both denied the charges against them.