How do I take a step? How do I lift my foot off the ground, move it through the air a little bit and then bring it down? I had to teach myself to walk again.

I was on dialysis for 18 months before the transplant, so it was important I tried to look ahead to days like my comeback this Saturday. You need those big goals to drive you on.

Towards the end of 2003 it was hard to get through training - and the darkest point was when a doctor told me there was a possibility I could end up in a wheelchair.

It was like falling off a building and suddenly, bang, you hit the bottom. The first time it happened was on an ordinary day at home. I was taking down some curtains. I took one step, turned around, took another step and then I fell and hit my head hard on the rowing machine.

For me to get through the toughest periods in my life, I had to look within to find the energy to do it. I don't give up. Never have. Never will.

When I was playing I felt tired all the time. My recovery period was a lot longer than the other players. They'd be ok after an hour - I'd have to stay in bed till the next session.

How do I take a step? How do I lift my foot off the ground, move it through the air a little bit and then bring it down? I had to teach myself to walk again.