For most of my life I had operated under a simple schematic of winning and losing, but cancer was teaching me a tolerance for ambiguities.

It's frustrating in the sense that I still think I could be competing at some sport at a fairly high level, which nobody cares about. Nobody wants to hear me say that.

It gave me a chance to re-evaluate my life and my career. Cancer certainly gives things a new perspective. I would not have won the Tour de France if I had not had cancer. It gave me new strength and focus.

Twenty-plus-year career, 500 drug controls worldwide, in and out of competition. Never a failed test. I rest my case.

I've given gifts in the Tour de France and it's come back to bit me. So no gifts.

For 15 years I was a complete arsehole to a dozen people. I said I would try and make it right with those people, and anybody that gave me an audience, I was there.

I'm cycling to take cancer message worldwide.