Bulgarian world No.13 Grigor Dimitrov believes he is a better player than his 2014 defeat of Andy Murray at Wimbledon and has targeted grasscourt success this year.
He stunned defending champion Murray in the quarter-finals three years ago before losing a close match to Novak Djokovic.
At the time, it seemed his career was destined for greatness but an alarming dip followed and he dropped to No.40 in the rankings.
But linking up with Murray's former assistant coach Dani Vallverdu last summer helped Dimitrov find his form and confidence again. In a brilliant start to 2017, the 25-year-old climbed back to 13th on the ATP rankings.
Titles in Brisbane and on home soil in Sofia sandwiched his second grand slam semi-final at the Australian Open, where he came agonisingly close to beating Rafael Nadal.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
After confirming he would play at the pre-Wimbledon tournament at Queen's Club, where he won the title in 2014, Dimitrov said: "I feel like I'm a better player, a better person, better everything.
"The grasscourt season is going to be a big thing for me with Queen's and then Wimbledon around the corner. I've seen the field, it's going to be very strong again, but I'm excited to see what my form is going to be like."
US Open champion Stan Wawrinka has also been added to the field for the Queen's warm-up event, which begins on June 19.
