With 10 Paralympic gold medals already, the Brazilian crowds will be cheering on Daniel Dias to more success in his home Games.
Inspired by the achievements of compatriot Clodoaldo Silva at the Athens Paralympics in 2004, he made his international debut two years later, starting a run of success.
Born with a congenital limb deficiency, he won four golds on his Paralympic debut at Beijing 2008 at the age of 20 went two better in London, dominating all of his events in the S5 category and setting four world records in the process.
He was the swimmer of the meeting at last year’s World Championships in Glasgow, winning seven golds.
There is seemingly little that his rivals, including Britain’s Andrew Mullen, can do to stop him adding to his successes.