Sunday marks Day 9 in London, the halfway point of the Olympic Games.

After a three-medal haul on Saturday, Team Canada looks to add to it's 1 gold, 3 silvers, and 6 bronze, good for 11th in the total medal count.

Here's what's coming up on Sunday:

Divers Jennifer Abel (Able) and Emily Heymans -- already bronze medallists in synchro -- aim for the three-metre individual springboard podium.

Ian Millar and Eric Lamaze compete in equestrian, while cyclist Zac Bell is an outside bet in the omnium competition on the cycling track.

The biggest event of the Games is Sunday afternoon on the track with the men's 100 metre final as defending Olympic champion Usain Bolt of Jamaica looks to defend his title. The semi-finals feature Canada's Justyn Warner.

In a Wimbledon rematch on the grass of the All-England Club Switzerland's Roger Federer faces Great Britain's Andy Murray for men's tennis gold.

At the tope of the medal standings, The United States is battling with China.

The U-S leads 26-to-25 in golds and 54-to-53 overall.

More than half the American medals have come in the pool, including 16 gold. Four of the golds were won by Michael Phelps.

Phelps retires with 18 career Olympic gold medals -- and 22 in total.