Mario Ančić (; born 30 March 1984) is a Croatian former professional tennis player who currently works as a private equity vice president in New York City. He won three singles titles and five doubles titles. His career-high singles ranking came during the 2006 ATP Tour, when he reached world no. 7. Ančić helped Croatia to win the 2005 Davis Cup and at the Athens Olympic Games in 2004, he and Ivan Ljubičić won a bronze medal in doubles for Croatia. As a teenager making his Grand Slam debut at the 2002 Wimbledon Championships, he defeated seventh-seeded Roger Federer. His best performance at Grand Slams came at the 2004 Wimbledon Championships, when he reached the semifinals. During 2007 and 2008, infectious 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. Personal life Ančić was born in Split, Croatia to Stipe and Nilda Ančić. His father owns a supermarket chain, and his mother is a financial adviser. His older brother Ivica and younger sister Sanja were also professional tennis players. Ančić was raised in a Catholic family and states that his faith is very important to him. He is very close to his uncle who is a priest and former missionary. Legal and business career From 2002 to 2008, Ančić was a law student at the University of Split; he graduated from its law school on 14 April 2008. His thesis described the legal foundation and organisation of the ATP Tour. Infectious mononucleosis forced Ančić to be off courts in much of the 2009 tennis season, and he started his residency in the law office of Turudić in Zagreb; but he announced he would freeze his residency for some time due to his tennis career. After attending Harvard Law, he graduated with an LLM from Columbia Law School. He became an investment banking associate at Credit Suisse; as of 2019 he is an Associate at One Equity Partners in New York City. Tennis career Early career (2000–2002) As a junior, Ančić rose to No. 1 in the junior world-rankings on 2 January 2001, compiling a singles record of 62–20. He made the finals in the Boys' Singles at the 2000 Australian Open (losing to Andy Roddick) and the 2000 Wimbledon Championships (losing to Nicolas Mahut). Goran Ivanišević was his doubles partner in his