What distinguishes tennis is respect for one's opponent, one's conduct on the court.

I am No. 8 in the world. I am not No. 100.

The US player Andy Roddick reaches speeds of 220 kilometers per hour when he serves. If I train with him every day, I will later be at an advantage against a player whose service crosses the net at 190 kilometers per hour.

In your career you have a lot of good moments and bad ones. The important thing is to have enough motivation to keep working all the days with humility and trying to be a better player than before. I am going to try to continue doing this.

I will work day after day like I did my whole life ... I'm not going to change anything.

Don't think about being the number one in the world, try instead to get through today's program as well as you can. Then we will see whether one day you'll end up as number one or number 100.

I have always tried to avoid regrets. Could I have done differently some things in my career? Maybe.