Jack Sock announces retirement after US Open – as it happened

Sock said on Sunday that American Jack Sock announced his retirement from tennis after the US Open.

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The 30-year-old Sock has won four ATP singles titles and 17 tour-level doubles trophies.

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Sock holds the 2017 ATP Masters 1000 title in Paris, as well as the men's doubles titles at Wimbledon in 2014 and 2018, and the 2018 US Open.

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Sock also won a gold medal in mixed doubles and a bronze medal in men's doubles at the 2016 Rio Olympics.

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Sock is teaming with John Isner at Flushing Meadows.

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The American is also set to retire after the conclusion of the final Grand Slam of the year.

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Sock posted on Instagram: "For the 8 year old boy who instantly fell in love with the game of tennis.

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He said “I must have made you proud.” “These are 14 years of memories I will never forget”.

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