Diego Hartfield (born January 31, 1981 in Oberá,
Misiones), nicknamed El Gato Hartfield (Hartfield
the Cat in Spanish) is a tennis player on the ATP
Tour from Argentina. His first tour-level match was
against world number one Roger Federer in the first
round of the French Open in 2006. Hartfield lost to
Federer in straight sets, but pushed the world
number one in each of the sets they played. In June
2006, Hartfield advanced to the third, and final,
qualifying round of Wimbledon, but was defeated by
Kevin Kim. He reached his first semifinal in Buenos
Aires during the 2007 Telmex Cup but lost against
Alessio di Mauro (6-1, 6-4). As of August, 2007,
Hartfield is 73rd in the ATP rankings.
In 2008, he was once again unlucky enough to draw
world number 1, Roger Federer, in the first round of
the Australian Open. He lost in straight sets, 6-0
6-3 6-0.
