Manchester United completed an unprecedented treble in Barcelona and NBA legend Vince Carter was also celebrating on this day 21 years ago.
Bayern Munich was on the brink of winning the Champions League at Camp Nou, but late goals from Teddy Sheringham and current United boss Ole Gunnar Solskjaer secured a dramatic 2-1 victory for Alex Ferguson's men.
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May 26, 1999 is also a date for Carter to reflect on with great memories, as he was named NBA Rookie of the Year. A decade earlier Arsenal snatched the First Division title from Liverpool at Anfield with a last-gasp strike from Michael Thomas.
1999 - Solskjaer leaves Bayern crestfallen in Barcelona
Bayern appeared to have dashed United's hopes of becoming the first team to win the Champions League, Premier League and FA Cup in the same season.
Mario Basler's early strike put the Bavarian giant in front and that looked to be enough for Ottmar Hitzfeld's well-drilled side to lift the trophy at Camp Nou.
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United had almost run out of ideas but with three minutes of added time shown on the fourth official's board, goalkeeper Peter Schmeichel came up for a corner that eventually resulted in Sheringham sweeping home following a scuffed shot from Ryan Giggs.
There was one final twist as Bayern was hit with the sucker punch, Sheringham nodding on another corner and Solskjaer prodding in from close range to spark wild celebrations.
1999 - Carter 'not surprised' by Rookie MVP gong
Carter was a revelation in his debut NBA season for the Toronto Raptors.
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He averaged 18.3 points, 5.7 rebounds and 3.0 assists a game, subsequently securing 113 of the 118 first-placed votes to be named the best rookie in the league.
Carter said after learning he had landed the award: "I can't say I'm surprised. But I'm overjoyed."
The Raptors missed out on the playoffs, but Carter gave them plenty of grounds for optimism and he has gone on to become an eight-time NBA All-Star.
1989 - Thomas fires Gunners to title
It came down to the final match of the season to decide who would be crowned champion of England 31 years ago.
Liverpool had overtaken the wobbling Gunners to take a three-point lead, but a victory by a margin of two goals or more would be enough for George Graham's side to take the title.
Alan Smith put the London club in front seven minutes into the second half to get the nerves jangling even more on such a tense evening on Merseyside.
Arsenal looked to have fallen just short of winning the First Division for the first time in 18 years, but Thomas surged through from midfield to win it right at the end and Arsenal took the title on goals scored with a stunning 2-0 victory.