The brilliant Ronaldinho has retired, but his legacy is full of 'what if?'

The ESPN FC crew look back on Ronaldinho's legendary career and persona on and off the pitch after the Brazilian officially announced his retirement. Now it's official: Ronaldinho will not play any more competitive football. His older brother and agent, Assis, has announced that farewell matches and events will take place after the World Cup, but one of the most gifted players the game has ever seen will not be kicking any more balls in anger. In truth, this only makes official what everyone already knew. Ronaldinho has not been seen in competitive action for more than two years. His last serious match was a Brazilian league game for Fluminense...