The competition witnessed its first period of extra time in a two-legged tie as AFC Ajax and Club Atlético de Madrid contested a thrilling quarter-final, the Dutch side winning 4-3 on aggregate.
• Brazil striker Ronaldo wins the Ballon d'Or after scoring 47 goals in 49 games in his only season at FC Barcelona.
• American golfer Tiger Woods wins the US Masters at the age of 21, the first of 14 majors in 11 years.
• IBM's Deep Blue defeats Garry Kasparov, the first time a computer beats a chess world champion.
• The London funeral of Diana, Princess of Wales, is watched by over two billion people worldwide.