Complex sentence: The 1999 UEFA Champions League Final was a football match between Manchester United and Bayern Munich on Wednesday, 26 May 1999, played at Camp Nou in Barcelona, Spain, to determine the winner of the 1998--99 UEFA Champions League.
Split into simpler sentences: The 1999 UEFA Champions League Final was a football match that took place on Wednesday, 26 May 1999. The match was played at Camp Nou in Barcelona, Spain, to determine the winner of the 1998--99 UEFA Champions League.