Olympic newsletter: A Summer hat trick, and who to watch on Sunday

This is an excerpt from CBC Sports' daily newsletter, The Buzzer. Subscribe here to get the latest on the Paris Olympics in your inbox every day.

Four more medals. And a hat trick for Summer McIntosh.

The 17-year-old swimming sensation won her third gold medal — the most ever by a Canadian at a single Olympics — to lead her country's most productive day of the Paris Games so far.

Just before McIntosh grabbed her fourth overall medal in her fourth and final individual race, winning the women's 200m medley, Josh Liendo and Ilya Kharun captured silver and bronze in the men's 200m butterfly, giving Kharun his second bronze of the Games. The defending-champion Canadian women's eight rowing team earned a silver to start the day.

Saturday's haul brings Canada's medal count to 15 (four gold, four silver, seven bronze) through eight full days of competition. That's good for ninth place in the total-medal standings at the halfway point of the Games.

But it wasn't a super Saturday for everyone. Defending Olympic champion Damian Warner withdrew from the decathlon after failing to clear the bar in the pole vault. Felix Auger-Aliassime fell short of his second tennis medal, losing the men's bronze match. And the Canadian women's soccer team's spirited rally from the depths of the Dronegate scandal ended with a penalty-shootout loss to Germany.

Some of the United States' brightest stars came out to shine again on Day 8. Simone Biles won her seventh Olympic gymnastics gold, Katie Ledecky swam to her eighth solo Olympic title by winning the 800m for the fourth straight time, while Ryan Crouser became the first man to three-peat in the Olympic shot put.

In the biggest track event of the day, Saint Lucian sprinter Julien Alfred upset