Serena Williams reacts after defeating Caroline Wozniacki of Denmark to win their women's singles final match of the 2014 U.S. Open on Sunday. The win was Williams' 18th Grand Slam title. Al Bello/Getty Images hide caption
U.S. Open
Kei Nishikori of Japan reacts after defeating Novak Djokovic of Serbia to reach the finals of the 2014 U.S. Open. Mike Groll/AP hide caption
Venus Williams hits a forehand during her first-round win over Kirsten Flipkens of Belgium Monday. Matthew Stockman/Getty Images hide caption
A man finds some shelter from the rain Thursday at the U.S. Open, which is being played at Merion Golf Club in Ardmore, Pa. Brendan Smialowski /AFP/Getty Images hide caption
LeBron James of the Miami Heat as he went to the basket against the Oklahoma City Thunder during Game 3 of the NBA Finals on Sunday in Miami. Don Emmert /AFP/Getty Images hide caption
Tiger Woods during a practice round Wednesday at The Olympic Club in San Francisco. Ezra Shaw/Getty Images hide caption
Andy Roddick races across the court to return a volley at the 2009 U.S. Open. Roddick was the last U.S. Open men's singles champion from America — which was in 2003 Edwin Martinez1/flickr hide caption