The cheats always have a way of justifying their behaviour - everyone else is getting away with it, so why shouldn't I? But because they're so reliant on the drugs - and the drugs are not always perfect, you're not guaranteed to peak at a big event - they don't have the confidence to look in the mirror and know that they can go out and give their best. If you're clean and you've prepared well for a race, that's where you have an edge.

As an athlete, there are advantages being with a team and getting regular physio...

I've always been good at putting things behind me–I fall apart, do my crying bit, and then put it away and move on.

I just want to be in the best shape I can be. Not to stand on that start line and say: 'Oh my God, I have this injury and that injury.' I just want to be able to go out and race.

I actually got a nice surprise about being a mother because I expected it to be harder and to have to make more adaptations.

It's important that athletes can compete on a level playing field. And youngsters coming into the sport can know that if they are working hard and training hard, they'll see a true reflection of where they stand and what they can achieve worldwide and not be swayed by people who are cheating.

I deliberately returned slowly to training after Raphael was born and everything, apart from being bitten by a dog while out training in Monaco at the beginning of the year, has gone pretty well.