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.Sponsored Sock’s doubles ranking still stands at No. 16. His singles ranking, though, has plummeted to No. 180. … Continue reading Jack Sock finally back to business