In 2001 Martin Johnson made history when he became the first man to captain the British and Irish Lions twice, but he almost turned the honour down.
Dan Biggar targets an "emotional" first British and Irish Lions Test start against South Africa after the recent death of his mother.
Check out the BBC Sport Live Guide for details of all the forthcoming live rugby union on the BBC.
The BBC's rugby union correspondent Chris Jones answers some of the key questions as the sport faces renewed concerns about the impact of concussion.
Check out the BBC Sport Live Guide for details of all the forthcoming live rugby union on the BBC.