Roger Federer and Anthony Joshua have become accustomed to winning in their respective sports, but both suffered notable defeats on June 1 through the years.
Federer saw his hopes of a second successive title at the French Open dashed in 2010, while nine years later Joshua lost his heavyweight titles - and his perfect record - to Andy Ruiz.
The date has better memories for Mumbai Indians in the Indian Premier League, plus it is also memorable for marking the end of Shaquille O'Neal's stellar NBA career.
Take a look back at some of the great sporting moments to happen on this day.
2008 – Royals overcome Kings to be crowned
The inaugural IPL season concluded with a last-ball thriller.
Rajasthan Royals, who were the top seeds at the end of the round-robin stage, just about overcame Chennai Super Kings in Mumbai, Sohail Tanvir the unlikely hero with the bat as he hit the single they required from the final delivery of the match.
Captain Shane Warne was also out in the middle for the winning run but Yusuf Pathan was the star performer for the Royals in the final, following up figures of 3-22 with the ball by making 56 in their successful chase.
2010 – Federer's slam streak comes to an end
For a second successive year, Robin Soderling caused a huge upset at Roland Garros.
The Swede had sensationally knocked out Rafael Nadal in the fourth round in 2009, though he went on to lose in the final to Federer. However, 12 months on, he gained revenge in the French capital, ending the champion's reign with a 3-6 6-3 7-5 6-4 win in their last-eight meeting.
With the loss, Federer saw his impressive run of reaching 23 consecutive grand slam semi-finals come to an end.
2011 – Shaq stops: NBA legend announces retirement
After a 19-year career that saw him score 28,596 points, O'Neal decided the time was right to retire. The man nicknamed 'The Big Diesel' had come to the end of the road.
Drafted by the Orlando Magic with the first overall pick in 1992, the center won three successive titles after moving to the Los Angeles Lakers, where he teamed up with Kobe Bryant.
O'Neal - voted the league's MVP in 2000 - won a further championship after switching to the Miami Heat. There were also stints with the Phoenix Suns and the Cleveland Cavaliers in the latter stages before a final stop in Boston with the Celtics.
2019 – Replacement Ruiz stuns AJ in New York
Ruiz was not even originally due to be in the opposite corner to Joshua in Madison Square Garden.
The challenger was called in as a replacement when Jarrell Miller was removed from the headline act - and he seized the unexpected opportunity by producing a stunning result that sent shockwaves through the boxing world.
Joshua had won 22 straight as a pro and came into the bout as the IBF, WBA and WBO champion. However, he was dropped and stopped by Ruiz, who climbed off the canvas in the third round to sensationally turn the fight around.