FC Dallas tied the series in regulation time on aggregate on a wild series of events in the final 10 minutes of the match. After 84 minutes of scoreless play, second half substitute Tesho Akindele got FC Dallas on the board first. The play got set up as Dallas attacked the width of the field when Je-Vaughn Watson, the Dallas right back, sent in a hard cross to the run of Akindele, who scored his second career playoff goal.
The celebration wouldn't last long for Dallas as Seattle got a game-tying goal in the 90th minute on a corner kick by Marco Pappa. The Honduran sent in a cross to the back post where Chad Marshall was there to head the ball home into the back of the net.
FCD responded just minutes later in stoppage time with a corner kick goal of their own. Mauro Diaz crossed the ball into the penalty box to Blas Perez, who flicked the ball back across the goal to the head of Walker Zimmerman. The goal would send the game into extra time as the two sides were tied on aggregate.
Neither side was able to get a goal in the two 15 minute extra frames and the game ended up going to penalty kicks. Seattle got on the board first with a goal from Clint Dempsey. Dallas responded with one from Diaz. FCD keeper Jesse Gonzalez would save the next two Sounder shots from Andres Ivanschitz and Chad Barrett, while Dallas got goals from Ryan Hollingshead and Akindele. Seattle got one back on the board from Andy Rose but Zimmerman again would be the hero with the series-clinching goal.
Dallas will advance to the Western Conference finals where they wait the winner of the Portland-Vancouver series.