Began playing tennis at age six with his family...Nicknamed "Gato," which is Spanish for cat...Parents, Norberto and Marisa...Lists his father, who overcame a life-threatening illness, as his greatest inspiration...Youngest of three children: brother, Diego and sister, Julieta...Finished as No. 2 junior in Argentina in 1996...While growing up, played soccer in addition to tennis...Compiled a 13-3 career Davis Cup singles record in nine ties between 2001-2003...Considered clay his favourite surface.