Veteran cycling commentator Phil Liggett has called on Lance Armstrong to 'name names' in the wake of his belated doping confession.
Armstrong admitted for the first time in an interview with Oprah Winfrey on Thursday that he doped throughout an illustrious career in which he won the Tour de France seven times.
Liggett was one of Armstrong's strongest supporters until the American was stripped of his Tour de France titles and banned from cycling for life in October for using banned substances.
But Liggett believes Armstrong could not have acted alone while doping and wants the disgraced cyclist to implicate others involved during his career.
"I think it wasn't a deep and sincere apology that I was really looking forward to," he wrote in his column in the Adelaide Advertiser on Saturday.
"He has to name names.
"He doesn't seem to realise the incredulous crime he has committed.
"It's the biggest fraud the sport has ever seen."
Liggett admitted he felt cheated after years of defending Armstrong before his confession went to air on Friday.
"I can't deny the pleasure he has brought many people including me and my commentary team from what we have seen from him in the past," he told Radio Sports National.
"But at the end of the day he has cheated his way through and he has taken a lot of people into his confidence and he has really let them down quite badly.
"He's still a great athlete. The drugs he has taken were to beat the very, very best at the very top and you could argue that those athletes he beat, many of them have already served time for taking drugs as well."