Dimitrov trained in Paris, France, where he joined Patrick Mouratoglou's Tennis Academy and spent the next four seasons there and he appointed Patrick Moratoglou as coach for 2012. Personal life Dimitrov began dating Maria Sharapova in late 2012. He and Sharapova only confirmed their relationship after the 2013 Madrid Open where the Bulgarian managed his first win against a world No. 1, beating Novak Djokovic. Sharapova and Dimitrov separated in July 2015. At the end of 2015, he started discreetly dating American singer Nicole Scherzinger, the lead vocalist of The Pussycat Dolls. In addition to his native Bulgarian, he speaks English and says his main interests are sports, cars, computers and watches. Early in his career he was given the nickname "Baby Fed" for his stylish play and on-court talent being similar to that of Roger Federer. Junior career He claimed his first major junior cup, the U14 European title, at the age of 14. In 2006, he won the Orange Bowl U16 boys singles and was later named the Eddie Herr International 2007 Rising Star. In 2007, Dimitrov was the finalist at the Orange Bowl U18 boys singles losing to Ričardas Berankis of Lithuania. With Vasek Pospisil, he reached the US Open doubles final falling to Jonathan Eysseric and Jérôme Inzerillo. He began the 2008 Grand Slam season with a quarterfinal showing at the French Open, losing to Poland's Jerzy Janowicz in three sets. However he went on to win Wimbledon after defeating Henri Kontinen of Finland in the final. He won the title without dropping a set despite playing with a shoulder injury throughout the tournament. The victory saw him join former junior champions Roger Federer and Stefan Edberg and guaranteed him a wildcard entry into the 2009 Wimbledon men's draw. His success continued at the US Open, which he won on 7 September, defeating American qualifier Devin Britton in two sets. On his way to the title he also defeated top seed Yang Tsung-hua of Taiwan in the semifinals. After the tournament Dimitrov announced that he was ending his junior career and focusing on improving his ATP ranking. On 8 September 2008, he became junior world No. 1 overtaking Yang Tsung-hua. He closed at No. 3 of the junior ranking that year. Dimitrov compiled a singles win–loss record of 74–28 as a junior (and 42–20 in doubles). Junior Grand Slam results – Singles: Australian Open: A (-)