Seattle Sounders FC celebrate their 1-0 win over FC Dallas by singing Happy Birthday to Coach Schmetzer in the locker room. SUBSCRIBE for more Sounders FC videos: http://sndrs.com/sbsc Visit SoundersFC.com: http://sndrs.com/ssfc Follow us on Twitter: http://sndrs.com/twtr Like us on Facebook: http://sndrs.com/fbook Follow us on Instagram: http://sndrs.com/ingrm