Britain's Andy Murray wants to win a record fifth Aegon Championship title at Queen's Club this summer.
The 28-year-old world number two confirmed on Tuesday he will defend the trophy he won for a fourth time last year with victory over Kevin Anderson.
There have been eight four-time champions, including John McEnroe, Boris Becker, Lleyton Hewitt and Andy Roddick in the open era.
"If I could win it for a fifth time it would be amazing," said Scot Murray.
"The names that have won it four times - they are all great tennis players.