Sir Dave Brailsford has revealed he has undergone surgery for prostate cancer.
The 55-year-old Team Ineos principal, who led Britain's domination of cycling at the 2008 and 2012 Olympics, had surgery last month after the diagnosis in July.
He told The Times: "There's bound to be fear. It's the great unknown. I think I'm resilient, tough. I can put up with a lot but in hospital one day I was overwhelmed, to be honest."
Brailsford, who will find out on Saturday whether surgery was successful, continued: "It's easy to think 'why is it happening to me?'
"I've worked hard on my health so you can get bitter, angry, frustrated. I had to learn to accept it. Talking about it among the team was a massive help."
Brailsford, who has delivered seven Tour de France successes in the past eight years, says he has found a new appreciation for life.
He added: "I work really hard, I charge around. Some might say I am obsessive. I can lose perspective and get very focused on small things. Now I just want to enjoy it more."