Barcelona and Manchester United are each bidding for a fourth Champions League success on Saturday night at Wembley. Both clubs have special memories from the world's biggest club competition, but have come across each other at various times in various European tournaments. We have trawled through the history books to study a few of the images that have made these clubs what they are today.
United first won the European Cup when they defeated Benfica 3-0 at Wembley in 1968. This is a group image of the United side fresh from that success.
Former Manchester United manager Sir Matt Busby poses with the spoils after leading United to their first European Cup in London.
Bryan Robson and Diego Maradona, two of the true greats to represent Manchester United and Barcelona, shake on it before the clubs meet in the 1983 European Cup Winners' Cup. United recovered from trailing 2-0 after the first leg to complete a 3-2 victory at Old Trafford in the quarter-finals.
Scotland striker Steve Archibald led the line for Terry Venables's Barcelona in the 1986 European Cup final, but they could not find a goal against Romanians Steaua Bucharest over 120 minutes watched by 70,000 fans in a sweaty Seville...
It is not to be for Barcelona in 1986 as they fail to score a single penalty in the shoot-out. Steaua claim the European Cup by scoring two of their four penalties. They remain the only side from Romania to win the big trophy.
United and Barcelona contest their first European final in the 1991 European Cup Winners' Cup. United won the match 2-1. Mark Hughes scored twice as Sir Alex Ferguson claimed his first European trophy as United manager. Ronald Koeman slipped home a free-kick for Barca to make it 2-1, but his time would soon come.
Mark Hughes holds the European Cup Winners' Cup trophy aloft having defeat his former club in Rotterdam.
Barcelona get over the disappointment of that loss as Koeman's thumping strike from distance gives the Catalan club a 1-0 victory over Sampdoria after extra time at the old Wembley a year later.
A young Barcelona manager Pep Guardiola shows off his skills in midfield at Wembley.
Despite having Romario and Hristo Stoichkov leading the line, Barcelona cannot replicate that success as they are shredded 4-0 by Milan in the 1994 final in Athens.
United claim their first Champions League victory under Ferguson when Ole Gunnar Solskjaer scores in the final seconds of injury time to give his side a 2-1 win over Bayern Munich in Barcelona. Teddy Sheringham scored the equaliser in the 90th minute.
It rounds off a remarkable season for United manager Ferguson, whose side clinch a famous treble having lifted the Premier League and FA Cup in England.
Barcelona must wait another 14 years to lift their second Champions League. They come from behind to defeat 10-man Arsenal 2-1 at the Stade de France in Paris in 2006. Arsenal have goalkeeper Jens Lehmann sent off for flooring Samuel Eto'o before a Sol Campbell header gives the English side the lead. Efforts from Eto'o and Juliano Belletti in the closing 14 minutes see Barca complete a memorable triumph.
Belletti's winner against Arsenal in 2006.
United seal their third Champions League trophy with victory over Premier League foes Chelsea in the 2008 final in Moscow. The sides play out a 1-1 draw in 120 minutes, but United get the nod after John Terry (above) slips and sends a kick to win it wide before Edwin van der Sar saves from Nicolas Anelka.
The rain is tumbling down in Moscow, but United don't care as the party begins.
Lionel Messi is the man on target with a fine header as Barcelona overcome United 2-0 in Rome in the 2009 final.
United taste defeat for the first time in a European Cup final when they are outplayed by Barcelona. Pep Guardiola's team complete a classy victory. It leaves both clubs level on three European Cups apiece. That statistic must change after Saturday night at Wembley.