nationalpost.com
Top-ranked Sock loses to fellow American Opelka at Delray
DELRAY BEACH, Fla. — Top-ranked Jack Sock lost Wednesday night to fellow American Reilly Opelka 4-6, 7-5, 6-3 in the second round of the Delray Beach Open.The 6-foot-11 Opelka, ranked No. 228…