Ok.
Boxing
Ali, Sugar Ray Leonard, "Marvellous" Marvin Hagler, Joe Frasier
Football
Pele, Maradona, George Best, Johan Cruyff, Bobby Moore, Marco Van Basten, Michael Laudrup, Dennis Bergkamp, Lothar Mathias
Rugby
Martin Johnson, John Eales, JPR Williams, Johnny Wilkinson, Andrew Merthens, Justin Leonard, the SA World Cup winning captain I can't spell as his name is the length of a small house.
Cricket
Gary Sobers, Don Bradman, Ian Botham, Shane Warne, Glenn McGrath, Steve Waugh, Malcolm Marshall, Richard Hadlee, Brian Lara, Sachin Tendulkar, Jack Hobbs, Wally Hammond
Formula 1
James Hunt, Ayrton Senna, Alain Prost, Michael Schumacher
Athletics
Carl Lewis, Seb Coe, Michael Johnson, Sergei Bubka
Others from other sports
Michael Jordan, Ian Thorpe, Michael Spitz, Babe Ruth
Tennis
Pete Sampras, McEnroe, Borg, Navaratilova
That'll do