Sock hires Joakim Nystrom as new coach
Jack Sock has hired former Top 10 player Joakim Nystrom of Sweden to be his coach. The U.S. teenager returned to tour action this week in Newport following elbow surgery. Nystrom has also coached Thomas Enqvist and Jurgen Melzer. Nystrom will begin coaching Sock at The Farmers Classic in Los Angeles, which begins July 23.