Bruce JennerReuters

Bruce Jenner is reportedly getting advice about a sex change from former professional tennis player Dr Renee Richards.

Richards, born Richard Raskind, underwent sex reassignment surgery in 1975 and has been an advocate of transgender rights ever since.

The 64-year-old former Olympic star had checked into Beverly Hills Surgical Center for a 'laryngeal shave,' a surgery to reduce the appearance of the Adam's apple, sparking rumours about him getting a sex change done. He was photographed leaving the office with bandages around his neck.

Richards, who is allegedly acting as Jenner's 'sex change coach' reportedly told Jenner that a sex change is "a serious, life-altering procedure and is not something to do unless you absolutely have no other choice," an insider told Star, according to Radar Online.

"She said someone should consider antidepressants first, because life could become an irreversible train-wreck if you're not completely certain about having the surgery," the source added.

Though the Keeping Up with the Kardashians star has not commented on whether he is in fact getting a sex change, his daughter Cassandra Marino from his first marriage to Chrystie Crownover, has expressed her support.

"Nobody knows how it is to be in his skin. If that's what he chooses to do, then I support him," she told People in February.

In October, Kris and Bruce Jenner announced they were separating after 22 years of marriage. Star magazine claimed they split because of his sexuality.

However, Kris spoke out about the rumours surrounding her estranged husband.

"Ninety-nine percent of the stuff in the tabloids is made up," Kris told Entertainment Tonight in an interview.