New Delhi, April 15 -- As far as upsets in sport go, Tiger Woods' win in the US Masters golf tournament isn't among the biggest. Leicester City's 2015-16 success at Premier League football in the UK, defying odds of 5,000 to 1, and even India's 1983 World Cup cricket victory at Lord's are the stuff of real stunners. As for individual sports, fairy tales are made up of such outcomes as the 1978 defeat of boxing heavyweight champion Muhammad Ali by a 24-year old Leon Spinks who had just seven professional fights to his credit till then....