Roger Federer played in six Olympic games and only missed one event in his entire career in Rio in 2016.
Federer picked up two medals in that time, in Beijing and London, but he never won an Olympic gold medal in the singles.
The closest the star came was in London in 2012, when he lost to Andy Murray in the final at the Wimbledon event.
Federer came under scrutiny for a decision he made at the Beijing Olympics, which was in contrast to every other tennis player.
Why Roger Federer refused to stay in the Olympic village
At the Beijing Olympics in 2008, every tennis player stayed in the Olympic village except for the Swiss star.
Explaining his decision at the event, Federer said: “It’s not possible for me to stay there,. There are so many athletes who want their pictures taken with me.
“I don’t mind it, but every day? I can’t escape it. It’s not the ideal preparation for winning Olympic gold.”
In contrast, the other top stars at the Olympics did stay with the other athletes at the Olympic village. Nadal, in particular, absolutely loved the experience.
He said: “It’s unforgettable to be in there with all the elite athletes that we only otherwise see on television. To be with them there is a really marvellous feeling.”
The experience helped the King of Clay kick on and win the only singles Olympic gold medal of his tennis career.
Nadal defeated Fernando Gonzalez in the final to earn the top podium, while Djokovic earned the bronze medal.
Federer won gold medals in the doubles in Beijing, alongside Stan Wawrinka, after they beat Swedes Simon Aspelin and Thomas Johansson.
Roger Federer recalled his ‘best chance’ to win Olympic singles gold
Federer’s inability to win a singles gold medal is the star’s only glaring omission in a glittering sporting CV.
Speaking to the BBC’s Not By the Playbook, Federer believed Athens in 2004 was his biggest missed opportunity.
He revealed: “I think my best chance was in 2004 to be honest, because that was the year I won three grand slams.
“I was world number one. I was number one seed. I think I was playing great before and after and unfortunately couldn’t make it then.“
Federer was surprisingly beaten in the second round in Athens by a rising Tomas Berdych, who shocked the Swiss star.
The gold medal was won by Nicolas Massu, with Mardy Fish winning silver, and Fernando Gonzalez capturing the bronze.