The man, protesting about the use of private jets in Britain, sat down and lit a substance on his arm during the match between Stefanos Tsitsipas and Diego Schwartzman.
Security personnel acted quickly to drag the man off the court before play resumed following a quick check to make sure the court surface had not been damaged.
Register now for FREE unlimited access to Reuters.com Register"A man accessed the court this afternoon and was promptly removed by security," a Laver Cup official said.
The man, who made his protest during the second set of the match, wore a T-shirt with the slogan "End UK Private Jets".
read moreRegister now for FREE unlimited access to Reuters.com RegisterReporting by Martyn Herman in London and Shrivathsa Sridhar in Bengaluru, editing by Pritha Sarkar and Ken FerrisOur Standards: The Thomson Reuters Trust Principles.