Jack Sock finally back to business
American Jack Sock, who was No. 15 in the world in singles a year ago, finally returns his week in Atlanta. The wild card will meet Miomir Kecmanovic. He's also in the doubles draw with pal Jackson Withrow. Sock's doubles ranking still stands at No. 16. His singles ranking, though, has plummeted to No. 180. The American has played just one match this year. He's been out since losing in the first round in Melbourne with a hand ligament injury, about which not much is known. He originally was due to return at two U.S. Challengers last month.