has insisted he is "feeling fit, strong and positive" despite announcing he has terminal cancer, as he shared a picture of himself at the Track Cycling World Championships.

The Olympic legend that he only has "two to four years " to live after initially being diagnosed with prostate cancer that has now spread to his bones.

Hoy - who is the second-most decorated Olympic cyclist in history - said he initially complained about a suspected shoulder strain before scans revealed a tumour that had spread from his prostate.

The 48-year-old, however, has assured fans that he still feels "fit, strong and positive" despite his tragic news as he shared a picture of himself working on the cycling event in Copenhagen in an uplifting social media post.

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"Great to be out in Copenhagen for the World track cycling championships broadcasting with the wonderful sport team," he wrote. "Some truly incredible performances; records and a new generation of future stars showing us what they can do.

"You may see in the news this weekend some articles about my health, so I just wanted to reassure you all that I’m feeling fit, strong and positive, and overwhelmed by all the love and support shown to my family and me. Onwards!"

Hoy's post led to an outpouring of support from former athletes and celebrities, including British ex-track and field star Sally Gunnell, who said: "You're incredible Chris, sending much love and strength."

Dame Jessica Ennis-Hill added: "Sending you so much love Chris," while fellow cyclist Mark Cavendish said: "Hero of a human being." Ex-rugby star Matt Dawson also paid tribute: "Your inspiration is second to none Chris."

Meanwhile, football commentator Ally McCoist said: "You, my friend, are a superstar in every sense of the word. Love and strength from us all." TV host added: "Some man".

He said he still felt "lucky" despite the diagnosis because of the treatment available that can prolong his life for as long as possible.

"As unnatural as it feels, this is nature,” Hoy told . “You know, we were all born and we all die, and this is just part of the process. You remind yourself, 'aren’t I lucky that there is medicine I can will fend this off for as long as possible'. But most of the battle for me with cancer hasn’t been physical. For me, it has been in my head."

Hoy shot to prominence after winning a sliver medal at the Olympic Games in Sydney in 2000 before going on to clinch gold at Athens 2004, Beijing 2008 and London 2012.

He rounded off his cycling career as the second-most decorated Olympic cyclist in history, as well as Scotland's most successful Olympian, and was knighted in 2009.