Here's The News Tribune's preview story, and below a few basics:
CHICAGO FIRE (4-5-13 in MLS)AT SEATTLE SOUNDERS FC (13-6-2 in MLS)7:30 p.m., Starfire Sports Stadium.BROADCAST: No TV or English-language radio. Game will be streamed on SoundersFC.com.HEAD TO HEAD: Seattle leads the all-time series 7-0-3. The teams met in the 2011 Open Cup final, with Seattle winning, 2-0 on goals by Fredy Montero and Osvaldo Alonso. Seattle also won the MLS regular-season meeting in June, 3-2, in Chicago. NOTES: This is a semifinal match of the 101st U.S. Open Cup. ... If the game is tied at the end of regulation, there will be 30 minutes of extra time. If the tie remains, the result will be determined by penalty kicks. The loser is eliminated. … Seattle won the Open Cup in 2009, ’10 and ’11, and advanced to the final in 2012. Chicago won four championships from 1998-2006, and returned to the semifinal last season. … The Fire advanced with wins over Pittsburgh, Columbus and Atlanta. Seattle advanced past PSA Elite, San Jose and Portland. … Chicago will play without 2013 MLS MVP Mike Magee, who received a red card in that win over Atlanta. Magee leads the Fire this MLS season with seven goals. Harry Shipp and Quincy Amarikwa have six goals each, and Shipp is the team leader with five assists. … Seattle All-Star right back DeAndre Yedlin is expected to start after sitting out the weekend win over Houston following international travel for an expected transfer to Tottenham Hotspur. … Sounders Marco Pappa and Jalil Anibaba used to play in Chicago, and the Fire’s Jhon Kennedy Hurtado and Sanna Nyassi are former Sounders. … The Sounders have advanced in all 15 Open Cup matches they have played at Starfire. … The match is sold out.QUOTABLE: “It’s a semifinal, so the players should all be motivated and eager. We are each coming into the game with basically the same amount of rest. They’ve had to travel, being really the only difference.” – Sounders coach Sigi SchmidNEXT: The winner will visit the Philadelphia Union in the Open Cup final Sept. 30 or Oct. 1. Seattle returns to MLS play at 11:30 a.m. Saturday at Real Salt Lake.