Jack Sock (born September 24, 1992) is an American professional tennis player who is currently ranked world No. 15 in men's singles as of June 25, 2018 and reached his career-high singles ranking of world No. 8 on November 20, 2017. He is the third-ranked American in singles and one of the top-ranked Americans in doubles on the ATP Tour. A former junior US Open champion, Sock's singles success is highlighted by his victory at the 2017 Paris Masters tournament and an appearance in the semifinals at the 2017 ATP Finals.
Sock regularly played doubles with Canadian tennis player Vasek Pospisil until July 2016, and together they won the 2014 Wimbledon Grand Slam championship, a victory that helped vault them into the Top 10 of the ATP doubles rankings. Additionally, he won the 2011 US Open mixed doubles title with fellow U.S. player Melanie Oudin. He has won four career ATP singles titles and eleven doubles titles.
At the 2016 Olympics, he won the gold medal in the mixed doubles with Bethanie Mattek-Sands and captured a bronze medal in the men's doubles with Steve Johnson.Description provided by Wikipedia
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