 Seattle has long-standing rivalries with nearby clubs Portland Timbers and Vancouver Whitecaps FC, with whom it competes for the Cascadia Cup.The Sounders played their inaugural match on March 19, 2009, winning 3–0 over the New York Red Bulls.Seattle has been among the league's most successful teams, winning the U.S. Open Cup four times, the Supporters' Shield in 2014, and the MLS Cup in 2016 and 2019.