Fans set off flares emitting colored smoke at a Seattle Sounders rally before the Cascadia Cup match against the Portland Timbers Sunday, August 25, 2013, at CenturyLink Field in Seattle. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
Fans watch a flag-waving march approach CenturyLink Field during a Seattle Sounders rally before the Cascadia Cup match against the Portland Timbers Sunday, August 25, 2013, in Seattle. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
Clint Dempsey, left, goes up for a shot on the Portland Timbers goal with a bicycle kick that nearly struck Alvas Powell, right, during the second half of the Cascadia Cup match Sunday, August 25, 2013, at CenturyLink Field in Seattle. The Sounders beat the Timbers 1-0. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
Fans raise their scarves and flags in support before the first half of the Cascadia Cup match Sunday, August 25, 2013, at CenturyLink Field in Seattle. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
Clint Dempsey, center, weaves through Timbers defense during the first half of the Cascadia Cup match Sunday, August 25, 2013, at CenturyLink Field in Seattle. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
Eddie Johnson, right, pulls down the pants of Pa Modou Kah, left, during the first half of the Cascadia Cup match Sunday, August 25, 2013, at CenturyLink Field in Seattle. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
A referee yells at Pa Modou Kah, left, following an aggressive play during the first half of the Cascadia Cup match Sunday, August 25, 2013, at CenturyLink Field in Seattle. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
Eddie Johnson, right, chases after Pa Modou Kah, of the Portland Timbers, after Kah kneed a downed Johnson during the second half of the Cascadia Cup match Sunday, August 25, 2013, at CenturyLink Field in Seattle. The Sounders beat the Timbers 1-0. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
Members of the Sea Gals dance during the first half of the final preseason game Thursday, August 29, 2013, at CenturyLink Field in Seattle. Seahawks led the Raiders 13-3 at the end of the first half. (Jordan Stead, seattlepi.com)
Lamar Neagle, right, blocks Timber offense during the first half of the Cascadia Cup match Sunday, August 25, 2013, at CenturyLink Field in Seattle. The sold-out match marked Clint Dempsey's first home game as a member of the Seattle Sounders FC. (Jordan Stead, seattlepi.com)
