Reilly Opelka considered retiring during 2-year absence from pro tennis circuit
Opelka, once ranked as high as 17, upset the top seed on Wednesday and is gearing up for the U.S. Open in late August with several tune-up tournaments.

Opelka, once ranked as high as 17, upset the top seed on Wednesday and is gearing up for the U.S. Open in late August with several tune-up tournaments.