(Reuters) -Briton Jack Draper once viewed himself as a Ferrari with reliability issues but the world number six said on Wednesday his hard work away from the court has given him the engine to cope with the physical demands of the Grand Slams.

Jack Draper has now reached the last eight at Queen’s Club Championships for the third time from four appearances, while he holds a 2-0 career record against Alexei Popyrin. He lost in the quarter-fin

Jack Draper survived the ferocity of Alexei Popyrin at the Queen's Club Championships, and the local favorite advanced – not without difficulties – to the quarterfinals with a 3-6, 6-2, 7-6(5) victory.