It's a tough world out there and all the guys are fighting hard and the competition is really tough.
Anything is possible as long as you have the passion.
But I still serve pretty big and that's one of my biggest weapons, so if my shoulder holds up and I can count on it, I can win a few matches and then you never know how the other guys are going to react to the fatigue and the length of the matches.
You can be a little lonely because it's an individual sport.
To be a professional tennis player you need to put in these sort of hours.
Suddenly in the end when it's over, you feel a big weight on your shoulders. That's the role of the captain. Unfortunately, it's sometimes like that in sport.