Britain's Andy Murray faces a tricky first-round match at Eastbourne after being drawn against fellow three-time Grand Slam champion Stan Wawrinka.
Both players are wildcards at the Nature Valley International, which starts on Monday, as they continue their comebacks from injury.
Murray, 31, made his competitive return on Tuesday at Queen's, where he lost in three sets to Nick Kyrgios.
He had been out for almost a year with a hip injury that required surgery.
If Murray reaches the second round he will face British number one Kyle Edmund, who has a bye and is the second seed at the event.