4 May 2012 Last updated at 12:00

Sporting Heroes: After The Final Whistle - with Michael Vaughan

Ashes-winning England captain Michael Vaughan looks into the difficult issue of retirement from professional sport.

Featuring interviews with George Foreman, John McEnroe, Tony Adams, Matthew Hoggard amongst others, Vaughan asks when is the right time to retire, how do sports stars plan for it and what really happens once the crowds stop shouting your name.

Watch "Sporting Heroes: After the Final Whistle" again on BBC iPlayer (available until 2334 BST on Wednesday, 16 May)