Tyson Gay wasn't sure if he would even be at the Olympics due to a left hamstring injury he suffered in early July at the U.S. trials, but the 2007 world champion is eagerly awaiting a 100-meter dash showdown this weekend with Jamaica's Asafa Powell and Usain Bolt.

Gay owns the fastest wind-aided time in history with a 9.68, but his competitors hold the two fastest legal times in the history of the 100-meter dash. Powell held the world record of 9.74 until this spring when Bolt, who beat Gay, broke the record with a 9.72.

So even if Gay is 100 percent recovered as he claimed this week, he has to race his absolute best to beat Jamaica's flying duo. If he's healthy as he says, it will be an exciting showdown to watch as these three race to grab the gold.

What are your thoughts? Will Gay be able to bring one home for team USA?