Mate Pavić (; born 4 July 1993) is a Croatian professional tennis player who is a former world No. 1 in doubles. He is a five-time Grand Slam champion, having won three titles in men's doubles: the 2018 Australian Open with Oliver Marach, the 2020 US Open with Bruno Soares, and the 2021 Wimbledon Championships with Nikola Mektić. Pavić also won mixed doubles titles at the 2016 US Open with Laura Siegemund, and the 2018 Australian Open with Gabriela Dabrowski. He finished runner-up at the 2017 Wimbledon Championships, the 2018 French Open and the 2020 French Open in men's doubles, and at the 2018 and 2019 French Opens in mixed doubles. Pavić has won 33 doubles titles on the ATP Tour, including five at Masters 1000 level. In May 2018, he became world No. 1 in doubles, making him the 52nd player history to hold the top ranking. He was the youngest doubles No. 1 since Todd Woodbridge in 1996, and the first player from Croatia, male or female, to be world No. 1 in singles or doubles. Pavić was part of the winning Croatian team at the 2018 Davis Cup, and also won Olympic gold in men's doubles at the 2020 Summer Olympics alongside Mektić. In singles, he reached a career-high ranking of No. 295 in May 2013. Early and personal life Pavić was born in Split, Croatia to Jakov, a tennis coach, and Snježana, a kindergarten teacher. He has two sisters, Nadja and Matea. He started playing tennis at the age of 5, after watching his father coach his sister Nadja. His nickname is Fifty. Tennis career Juniors As a junior Pavić posted a singles win–loss record of 95–51 (90–39 in doubles) and reached a combined ranking of No. 5 in January 2011. In singles, in 2010 he reached the French Open QF and in 2011 again the QF, this time at the Wimbledon Championship. His biggest success as a junior came at the 2011 Wimbledon Championships – Boys' doubles where he won the title partnering George Morgan (UK). Early career After winning the Boys' Doubles title at Wimbledon Championship, Pavić received a wild card to the 2012 Zagreb Indoors doubles tournament. Partnering Ivan Dodig, he reached his first ATP doubles finals at the age of 18 years and 7 months. In singles, his first ATP-level tour match came at the 2011 ATP Croatia Open in Umag, where