LONDON, June 16 (Reuters) - British teenager Jack Draper continued his impressive run at the Queen"s Club championships as he beat Kazakhstan"s Alexander Bublik 7-6(5) 7-6(0) on Wednesday. Draper, who knocked out Italian world number 19 Jannik Sinner in his opening match, used his powerful forehand to great effect against the tricky Bublik. The 19-year-old did wobble when he served for the match at 5-4 in the second set and was broken after a string of errors. He then saved a set point to force a tiebreak he won with ease. Wildcard Draper is Britain"s youngest ATP quarter-finalist since Andy Murray in 2006. In it he will face British number two Cameron Norrie who continued his impressive season by beating Russian fifth seed Aslan Karatsev 7-5 6-2. "To be a quarter-finalist at Queen"s sounds amazing," Draper, runner-up in the Wimbledon junior event in 2018, said. "I thought I blew it near the end but I"m glad I stuck with it. The crowd helped me get over the line." Two-time Wimbledon champion Murray, making his return to grasscourts singles action for the first time in three years, faces Italian Matteo Berrettini on Thursday.