David Nalbandian ( born January 1 , 1982 ) is an Argentinian professional tennis player who is ranked 12th in the world as of February 23 , 2009 .
During the course of his career , Nalbandian has won ten ATP titles .
Nalbandian   ( born January 1 , 1982 ) is an Argentinian professional Nalbandian   who is ranked 12th in the world as of February 23 , 2009 .
During the course of his career , Nalbandian has won ten ATP titles .