Jack Sock: Acapulco loss, early 2018 struggles continue
I had to leave work early today': Part-time tennis player beats former world No.8 Jack Sock, World News - AsiaOne
Jack Sock, numero 0. Dalle Finals alla fine in due anni: non ha più ranking ATP - ilNapolista
Despite His Doubles Prowess, Kansas City Tennis Star Jack Sock Wants To Stick With Singles | KCUR - Kansas City news and NPR
Tennis stunner: Jack Sock falls to part-time player in Delray Beach
Jack Sock | Atlanta Open Tennis
Jack Sock's Loss at Paris Masters Ensures Drop Out of Top 100 - Sports Illustrated
Can American Jack Sock Make it Back to the Top of His Game at the Dallas Open? - D Magazine
Jack Sock is on the verge of a significant rankings plunge
Jack Sock offseason training; coach Mike Wolf on 2017 - Sports Illustrated
After starting over in the rankings, a more mature Jack Sock is "ready to do some damage again"
Jack Sock | Overview | ATP Tour | Tennis
Tennis: Equity firm director posts shock win over former world No. 8 Jack Sock | The Straits Times
Jack Sock | Overview | ATP Tour | Tennis
Jack Sock | Overview | ATP Tour | Tennis
Jack Sock - Wikipedia
Once ranked No. 8 in the world, Sock continues comeback at Sarasota Open
Sock to fall outside of ATP singles rankings
Another Source of Conflict in Tennis: Are You Up or Down on Doubles? - The New York Times
Jack Sock - Wikipedia
Jack Sock's Comeback Turns Into a Title and a Resurgence - The New York Times
Meet The 2021 Comeback Nominees: Kokkinakis, McDonald, Murray & Sock | ATP Tour | Tennis
Jack Sock se queda con 0 puntos en el ranking ATP
