Great Britain's Alistair Brownlee retains his Olympic triathlon title in Rio, as his younger brother Jonny Brownlee takes the silver. Having been among the leaders throughout the swimming and the cycling, the two brothers took the lead early in the run. His victory means Alistair Brownlee becomes the first man to defend an Olympic triathlon title Men's triathlon: Rio 2016 Olympics - gold and silver for GB's Brownlee brothers - as it happened