NEW YORK (AP) -- Before Jack Sock took on 2014 U.S. Open champion Marin Cilic in the third round, the 23-year-old American acknowledged that, as of a couple of years ago, simply making it that far would have made him, to use two of his words, ''satisfied'' and ''excited.'' Now Sock wants more.
Sock overwhelmed No. 7-seeded Cilic 6-4, 6-3, 6-3 in a little more than 1 1/2 hours to reach the fourth round at Flushing Meadows for the first time. He will face No. 9 Jo-Wilfried Tsonga of France. Tsonga advanced with a 6-3, 6-4, 7-6 (4) victory over No.