Cape Town - John Smith and James Thompson won rowing gold for South Africa at London 2012, before the breakup of their lightweight fours team forced them into a rapid reinvention.
The duo paired up to take on the lightweight double sculls and in a short space of time have emerged again as genuine medal contenders.
Four years ago, Smith and Thompson teamed up with Matthew Brittain and Sizwe Ndlovu to dash the home hopes of Britain's fancied team and win South Africa's only rowing gold.
A recurring back injury, however, forced Brittain to retire and pushed Smith and Thompson in a new direction.
“I always thought it would be extremely difficult to switch, but they have made it look easy,” said Brittain.