#6 Mario Ancic
Former Croatian tennis star Mario Ancic achieved a career-high ranking of world number 7 in 2006. He made the quarterfinals at Roland Garros in 2006 and his best Grand Slam performance was a semi-final appearance at the All England Club in 2004 where he was beaten in 4 sets by American Andy Roddick.
Ancic won the bronze medal at the 2004 Athens Olympic Games along with partner Ivan Ljubicic. The following year, he helped Croatia win their first ever Davis Cup beating Slovakia in the final. Mononucleosis and minor injuries forced him to miss many major events, and his ranking dropped from No. 9 in January 2007 to No. 135 in January 2008.
A law graduate from Harvard University and Columbia University, Ancic is now employed by Credit Suisse as an investment banker in New York. He coached Novak Djokovic for a brief period in 2017.