Nikola Mektić (born 24 December 1988) is a Croatian professional tennis player who is a former world No. 1 in doubles. He is a two-time Grand Slam champion, having won the 2021 Wimbledon Championships in men's doubles partnering compatriot Mate Pavić, and the 2020 Australian Open with Barbora Krejčíková in mixed doubles. Mektić also finished runner-up at the 2020 US Open with Wesley Koolhof in men's doubles, and the 2018 US Open with Alicja Rosolska in mixed doubles. He became world No. 1 in men's doubles in October 2021, the second Croatian to reach this ranking. Mektić has won 16 doubles titles on the ATP Tour, including six at Masters 1000 level with four different partners. He also won the 2020 ATP Finals with Koolhof. In singles, he reached his highest ranking of world No. 213 in May 2013. Mektić was part of the Croatian team which won the 2018 Davis Cup, and won men's doubles gold at the 2020 Olympic Games alongside Pavić. Early and personal life Mektić was born in Zagreb, Croatia in 1988 to Mirko (father) and Višnja (mother). He began playing tennis at age 6 after his brother Luka took up the sport. Career After spending a better part of a decade on the ATP challenger tour and achieving a career high ranking of No. 213 in singles (on May 6, 2013), in 2016 Mektić decided to focus on doubles. The same year he reached his first ATP men's doubles final as a wildcard at the 2016 Croatia Open Umag with his compatriot Antonio Šančić. Since then, he has won sixteen ATP men's doubles titles, including one doubles Grand Slam title, six Masters 1000 titles, one mixed doubles Grand Slam and the 2020 ATP Finals. 2018-2019: First Grand Slam final, three Masters titles In 2018 Mektic and Alexander Peya qualified for the 2018 ATP Finals in London. The same year Mektić reached his first Grand Slam finals (in mixed doubles) at the 2018 US Open, partnering Alicja Rosolska, and won the Davis Cup playing for Croatia. He also won three Masters 1000 with three different partners in Madrid (2018), Indian Wells (2019) and Monte Carlo (2019). 2020: ATP Finals doubles title, Australian Open mixed title, top 10 doubles ranking 2020 was the most successful year for Mektić in his career thus far. He won the 2020 ATP Finals in doubles partnering Wesley Koolhof and the 2020