March 20 (Reuters) - Britain's Jack Draper ⁠suffered a surprise defeat to American Reilly Opelka in the ⁠second round of the Miami Open on Friday, while Ethan Quinn ‌claimed the biggest win of his career by upsetting 11th seed Casper Ruud.

Draper had arrived in Florida on the back of a quarter-final run at Indian Wells, just his second ​ATP Tour event after an extended spell out ⁠with an arm injury, but ⁠was unable to build on that momentum.