Britain's Andy Murray became the first tennis player to win two Olympic singles titles by beating Argentina's Juan Martin del Potro in Rio.
An emotional Murray, 29, secured a thrilling 7-5 4-6 6-2 7-5 victory to make it GB's most successful day at an overseas Games with five gold medals.
The see-saw match featured 14 breaks of serve in front of a raucous crowd.
Murray's win comes five weeks after he claimed his second Wimbledon title and four years after London 2012 success.