David Nalbandian — Argentinian Athlete born on January 01, 1982,

David Pablo Nalbandian is an Argentine retired professional tennis player and former World No. 3. He was runner-up at the 2002 Wimbledon Championships and the winner of the Tennis Masters Cup in 2005. He has also won two Masters 1000 events. He is the only Argentine player in history who ever reached the semi-finals or better at all four Grand Slam tournaments and reached the men's singles final at Wimbledon... (wikipedia)

The strongest feelings I experienced were in Davis Cup. It was the most powerful thing: the victories and the losses. It hits you in a distinct way. It's another level of satisfaction - another level of sadness.
Sometimes the ATP puts a lot of pressure on the players and sometimes you get injured because you play on a dangerous surface. Nothing happens, no one pays for that.
Sometimes we get very frustrated here on court. It is tough to control. It is a mistake.
I think one has to understand that there are stages in life, and that the life of an athlete has its limits. It's short, and then it stops, and sooner or later you have to accept that.