Sunday kicks off the ninth day of the Summer 2012 Olympics.
The Williams sisters, Venus and Serena, won the doubles gold in women's tennis.
They are the first pair to win that gold three times.
Andy Murray won the gold for the home team, beating Roger Federer during triple sets in the tennis final at Wimbledon.
One of the premiere events takes place Sunday, as Usain Bolt holds the world record of 9.58 seconds.
Day nine's medal count has China in the lead in golds and overall totals with 58. The U.S. is in second with 27 golds and 56 total medals.
The U.K. is in third place with 34 total medals, with Russia and Japan behind that.