This gold medallist didn't know he won until a friend called him!

Ferry Weertman of the Netherlands, who won the men's marathon swimming event, emerged from the water mentally and physically drained and did not realise he had won until a friend called from home......

PHOTOS: The gold medallists on Day 11 at Rio Olympics

Check out the gold medallists on Day 11 of the 2016 Olympic Games in Rio de Janeiro on Tuesday: China's Cao wins gold in 3 metre springboard IMAGE: Yuan Cao of China competes in the men's Diving......