Jack Sock reflects on his three-set victory over Alexander Zverev as he became the first American to reach the semi-finals at the year-end Championships since Andy Roddick in 2007.
London 2017 Sock Interview
Interviews
London
2017RRRR
Jack Sock reflects on his three-set victory over Alexander Zverev as he became the first American to reach the semi-finals at the year-end Championships since Andy Roddick in 2007.
