Tupou and the rest of the Wallabies front rowers were walking back to their hotel, the Sandton Sun, at approximately 9:15pm local after a dinner just across the road, when a man walked past and grabbed his phone before running towards a waiting vehicle.
After initially believing it to be one of his teammates, Tupou realised it was a stranger and pursued the man, sustaining some minor cuts to his arm attempting to grab the device out of the car.
Tupou said on Sunday evening (AEST) that he was feeling okay after the incident.