how many mls cups has the first team won?
2
Seattle Sounders FC
 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.
what was the 2009 u.s. open cup final? UNANSWERABLE which type of sport was played? Football. between which two teams was the game played? Seattle Sounders FC and D.C. United.
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Seattle Sounders FC [SEP] Introduction
The Sounders play their home league matches at CenturyLink Field, with a reduced capacity of 37,722 seats for most matches. Along with several organized groups, a 53-member marching band called 'Sound Wave' supports the club at each home match. 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.