Day 9 of the 2012 Olympics track and field events was full of drama and excitement.
It was a big day for Russian athletes in the track and field events. They racked up four gold, two silver and two bronze medals on the day.
The United States also had themselves a good day by hauling in three medals of their own.
The addition of Usain Bolt proved to be the edge the Jamaicans needed as they squeaked past the Americans in the men's 4 x 100-meter relay finals. They also set a world record with their time in the event.
Read on to check out all the action from the second-to-last day of Olympic action.