John Isner
Craig Boynton, who was Isner's coach, has started a new chapter with Opelka, but he doesn't see them as similar, despite both being big servers.
The American, who has not yet reached twelve months since retiring from the circuit, explains how bulls are seen from the sidelines: "I miss it".
Craig Boynton, who was Isner's coach, has started a new chapter with Opelka, but he doesn't see them as similar, despite both being big servers.
The American, who has not yet reached twelve months since retiring from the circuit, explains how bulls are seen from the sidelines: "I miss it".