Britain's world number one Andy Murray will begin his attempt to win a sixth Aegon Championships title when he faces Australian Jordan Thompson at Queen's Club on Tuesday.
The pair will meet in the third match on Centre Court at about 15:30 BST.
Fellow Britons James Ward and Cameron Norrie are also in action, along with second seed Stan Wawrinka and last year's runner-up Milos Raonic.
"I've played some of my best tennis over the years here," said Murray.
"It's a tough, tough field and if you can get through this tournament then it does give you a big boost going into Wimbledon.