Sock Reaches Quarterfinals in Memphis With Win Over Blake
American Jack Sock advanced to his second tour-level quarterfinal after defeating fellow wild card and countryman James Blake 7-5, 6-4 at the 2013 U.S. National Indoor Tennis Championships in Memphis. Sock saved nine of the 10 break points he faced to clinch the win in one hour and 48 minutes. Sock will face Feliciano Lopez…

