The fourth round of the US Open Cup kicked off last night with eight match ups as the MLS teams entered the competition. While five of the match ups are all MLS affairs, there was one upset as Saint Louis FC topped the Chicago Fire 2-1. Elsewhere, former Kansas City forward, Teal Bunbury helped the New England Revolution defeat the New York Red Bulls on the road. Trailing 2-1 last in the game, Bunbury scored to tie the game at 2-2 and send the game to extra time. Then in the 109th minute, Bunbury chipped New York goalkeeper, Ryan Meara for what proved to be the winning goal as the Revolution advanced.