Jack Sock is an American professional tennis player known for his powerful serve and strong doubles skills. Born on September 24, 1992, in Lincoln, Nebraska, he turned professional in 2011. Sock has achieved success in both singles and doubles, winning multiple titles on the ATP Tour. In singles, Sock reached a career-high ranking of No. 8 in November 2017. He has also excelled in doubles, winning several Grand Slam titles, including the US Open in 2011 and the Wimbledon men's doubles in 2014. Sock is recognized for his athleticism and competitive spirit on the court.