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.
Both men looked exhausted in the fourth set of a gruelling four-hour contest, and Murray broke down in tears when he finished off a gritty and determined Del Potro.
The crowd on Centre Court were boisterous throughout, with plenty of Argentine support for Del Potro, although emotions did spill over near the climax when two fans were ejected.
‘A lot has changed since 2012’
Murray said the final was one of the toughest he had played in, and cast doubt on the possibility of him winning a third gold in Tokyo in four years’ time.
“The fact it’s not been done before shows it’s very hard so I’m proud to have done that,” he said of retaining the title.
“Four years is a long time and so many things can change. A lot has changed since 2012, I’m happy here competing for the biggest events.
“Who knows about Tokyo in four years. At 33, I’m not sure I’ll be at the same level.”
Del Potro’s silver medal signifies his continued return to form, with his past three seasons disrupted by a wrist injury.
The 27-year-old, a 2009 US Open champion and bronze medalist at London 2012, beat world number one Novak Djokovic in the first round, after being stuck in a lift for 40 minutes, and defeated 2008 Olympic gold winner Rafael Nadal in an epic three-hour semi-final.
But in the final he came up against a player on a career-defining run.
After inspiring Britain to a first Davis Cup win in 79 years in November, Murray was voted the BBC’s Sports Personality of the Year, before going on to reach the Australian and French Open finals and winning Wimbledon for the second time.
He also became a father earlier this year and led GB out at the opening ceremony of Rio 2016 as his country’s flag bearer.
On the court, he has lost just one of his past 30 matches, a run stretching back six months, and has been world number two since November, barring a one-week drop to third in May.
Nishikori goes away with bronze
Earlier, Japan’s Kei Nishikori claimed his first Olympic medal by beating Spain’s 14-time Grand Slam winner Nadal for men’s singles bronze.
Nadal, 30, who had already won men’s doubles gold, recovered from 5-2 down in the second set to level the match, but lost 6-2 6-7 (1-7) 6-3.
Nishikori, 26, had never been past the quarter-finals at a Games.