Olympic cycling was stopped after a horror crash at the National Velodrome.
During heat four of the men's Keirin repechanges on Saturday evening, Trinidad and Tobago star Kwesi Browne suffered a sickening crash on the final lap.
Browne was in a close pack with his fellow riders when he suffered a very heavy high speed fall that brought the race to an immediate end.
The medical teams were immediately called to the 30-year-old's aid.
Joe Choong handed over his Olympic modern pentathlon crown after giving himself no chance of retaining his title.
Choong, who hunted down Egypt’s Ahmed Elgendy to win gold in Tokyo three years ago, found himself in an impossible position after his day one fencing fiasco.
And while the 29-year-old multiple world champion showed grit and determination in his forlorn task, he finished in ninth place, 35 seconds behind the Egyptian.
Choong, who started the day 17th in the 18-man field, needed a perfect evening to get in the medal hunt.
But he had one fence down in the showjumping and while he was fastest in the 200m swim it meant he began the laser run 50 seconds down on Elgendy and 14th overall and while he made up five places, a medal was beyond his grasp.
Next up at the Stade de France is the Men's 5000m, and that means an opportunity for GB's George Mills to add to the silver medal he won at the European Championships.
Masai Russell wins the Women's 100m hurdles right on the line!
And just like the Men's 800m, it could not not have been any closer!
The American comes through in the final stages to edge out home favourite Cyrena Samba-Mayela in an incredible finish.
Both runners look anxiously to the big screen for confirmation of the result, and then the celebrations begin.
Samba-Mayela breaks down in tears of joy with her silver being France's first track and field medal of these games - the stadium respond with an incredible reception for the 23-year-old.
Jasmine Camacho-Quinn, meanwhile, showed her class by recoverign from a shaky start to take bronze.
Emmanuel Wanyonyi holds off the challenge of Marco Arop to cross the line one-hundredth of a second ahead of his rival.
It's an astonishing run from the Kenyan, who hit the front with one lap remaining and just kept going.
Arop and Algerian Djamel Sedjati pushed the leader hard in the final 50m, but Wanyonyi somehow dig deep to keep himself in front and take gold by the narrowest of margins.
The Kiwi golfer had to settle for bronze in the Women's Individual stroke play in Toyko, having been so close to glory in Rio five years earlier, when she claimed silver.
She had indicated this would be her last shot at the Olympics, and she has held her nerve in the final round to finish two shots ahead of the field.
Ko finished two strokes ahead of Germany's Esther Henseleit, who piled on the pressure with a brilliant round of 66.
The final of the Men's Modern Pentathlon has begun with Team GB's Joe Choong out to defend the gold medal he won in Tokyo.
The 29-year-old wowed at the last Olympics, but has had to deal with adversity in the build-up to this games including injury and personal disappointment.