Major League Soccer Power Rankings: Chivas USA wins again, Columbus gets a win, and Dallas remains the worst

Major League Soccer had another full week of games and Columbus finally got their first win, Chivas USA won again, and FC Dallas continues to be the worst team in the league. There were a few surprises as the New York Red Bulls scored 4 goals, and the Galaxy were able to get 2 draws on the road. Here's the latest Major League Soccer rankings through May 11, 2009.