Fourth seed Richard Gasquet was knocked out in the first round as rain disrupted the first day of the Aegon Championships at Queen's Club.
Play was scheduled to begin at 12:30 BST but was regularly delayed because of intermittent showers over London.
Frenchman Gasquet lost 7-6 (7-2) 6-2 to American Steve Johnson in a stop-start match that finished after 19:30 BST.
British number four Dan Evans was due to face France's Paul-Henri Mathieu but they will now play on Tuesday.
Download Flash Player nowYou need to install Flash Player to play this content.