Tickets for the Seattle Sounders USL First Division semi-final match against the Puerto Rico Islanders at Starfire Sports Entertainment Complex in Tukwila at 5pm Sunday September 23rd go on sale today at 10am and are $15 in advance and $18 at the gate.

Sounders fans are encouraged to arrive early and check out the Sounders pre-match specials at Mad Pizza. Gates open at 3:30 pm and reserved seat season ticket holders will have a special reserved section. The remainder of the seating will be general admission with standing room only seating added if necessary.

The match is the second of the aggregate score series. The first match takes place in Puerto Rico Friday night at 5pm Seattle time and is available for viewing online through USLLive.com.

The Sounders earned their way to the semifinal with a 3-0 aggregate score victory against the number eight seed Carolina Railhawks. Number six seed Puerto Rico stunned the third seed Montreal Impact 3-0 in Puerto Rico on Sunday to win the series 5-3 on aggregate after a 3-2 loss in Montreal.

The second seed Portland Timbers will face the number four seed Atlanta Silverbacks in the league’s other semifinal. Portland overcame a one goal deficit against the Vancouver Whitecaps to win their series 3-1 and the Silverbacks held on to defeat the Rochester Raging Rhinos 3-2 in their series.

Seating for the Sounders home playoff match is limited. Ticket holders should get their tickets early from SeattleSounders.net or by calling 206.622.3415.