British No.1 Jack Draper retired from his Japan Open quarterfinal against France's Ugo Humbert on Sunday after struggling with an abdominal issue.

The result is Draper’s first singles success since his brilliant run at the US Open, where he was defeated by eventual champion Jannik Sinner in the semi-finals.

British tennis star Jack Draper, 23, has withdrawn from the Japan Open quarter-finals after an injury forced him to retire mid-match. Draper lost the first set 7-5 and

Jack Draper retired from his Japan Open quarter-final against Ugo Humbert after appearing to struggle with an abdominal injury. The US Open semi-finalist trailed 7-5 2-1 to the Frenchman and was serving when he pulled up during a point.

Jack Draper's run at the Japan Open came to a premature end on Friday as the Briton was forced to retire from his quarter-final with an injury.

Jack Draper retired injured from his quarter-final clash with France's Ugo Humbert at the Japan Open.

Only a couple of weeks after criticising tennis’s “mental” schedule, British No1 Jack Draper retired from a match in Tokyo with what looked like an abdominal injury.

Jack Draper is safely through to the next round of the Japan Open after cruising to a one-sided victory over Mattia Bellucci in Tokyo. We'll be bringing you the very latest updates, pictures, and video on this breaking news story.

Jack Draper retires injured in Japan Open quarter-final clash with Ugo Humbert - The British number one received on-court treatment for an apparent abdominal issue.