Draper retires from Japan Open quarter-final

British number one Jack Draper is out of the Japan Open after retiring because of injury in the quarter-finals.

The 23-year-old lost the first set 7-5 and trailed 2-1 in the second against France's Ugo Humbert in Tokyo.

World number 20 Draper took a medical time out early in the second set to receive treatment on his abdominal area. He tried to continue before retiring.

Humbert will face the Czech Republic's Tomas Machac on Monday for a place in the final.