June 4th, 2011 saw the rematch at Toyota Park. It would end in a 0-0 draw in a fairly uneventful match. Only five of the 11 Chicago starters project to start tomorrow while Seattle's lineup looked very similar to what Chicago should see tomorrow night.
I should also note that the Fire played the Sounders in a preseason friendly on February 26th, 2011. I did not include it in the list of matchups because, let's be honest, it's a friendly.