Zach just finished Playing The Enemy: Nelson Mandela and the Game That Made a Nation by John Carlin. You might find it on the shelves as Invictus, re-released under this title to coincide with the movie.
Zach says, "Invictus was cool because as a youngster when all that was going on, I was oblivious to what was going on in my own country, let alone South Africa. I had always heard the name Nelson Mandela and associated him with good people, but it wasn't until I read Invictus that I realized the magnitude of this man's impact on South Africa. And not only that, but how much sport can be a medium for politics and an opportunity to unite a country."
From The Guardian:
This is a gripping account of Nelson Mandela's political masterstroke during South Africa's 1995 Rugby World Cup. With the nation on the brink of civil war, Mandela seized on the sport once reviled by the country's blacks as a symbol of Afrikaner oppression and used it to unite his divided country. Morné du Plessis, the side's manager, urged his almost exclusively white team to learn the "black" national anthem for the tournament. By the time Mandela strode into Ellis Park stadium for the final between South Africa and New Zealand, to unanimous cries from both whites and blacks of "Nelson! Nelson!", the symbolism was potent enough to make hulking rugby players shed a tear.