Two Olympians have tested positive as the Tokyo Olympics got under way.
Young dutch rower Finn Florijn saw his Olympics dream end after competing in the men's single sculls race.
The 21-year-old had finished in fourth in the sixth heat of the men's single sculls race earlier on Friday, which was not enough to progress to the quarter-finals as only the top three qualify directly.
"I wasn't completely satisfied with my race, but I was hopeful to do better in the rematch," said Florijn, whose father was also an Olympic rower.
"Now it's over in an instant. I really can't say much more about it."
German cyclist Simon Geschke has been ruled out of men's road race, due to start at 3am BST on day one, after testing positive for coronavirus.
The German team says Geschke - a stage winner on the Tour de France in 2015 - initially tested positive Friday and his result was confirmed by another test later in the day.
Geschke said: "I feel fine physically but emotionally it's a really terrible day for me."
Additional reporting by AP.