Match of the Day: Denis Kudla vs. Jack Sock, Indian Wells Challenger Once the future of American tennis, Sock and Kudla will face off below the tour level for the first time since 2012.

Fresh from winning his first ATP Masters event in Paris, U.S. tennis star Jack Sock takes CNN ‘Sock Challenge’ ahead of the year-ending ATP World Tour Finals.

Things didn’t look good for Lincoln native Jack Sock early in the third set Sunday in the championship match of the $100,000 Tiburon, Calif. Challenger pro tennis tournament. He had lost seven ...

Lleyton Hewitt defeated Jack Sock (7-5, 6-4) in a Hopman Cup match earlier today in Australia. During the match Hewitt was called for a fault, but Sock saw that the ball was actually in. While Hewi… ...