Seattle Sounders FC at Chicago Fire

Seattle Sounders FC at Chicago Fire

When: 7:30 p.m. at Toyota Park

TV: Ch 5.2

Scouting the Sounders: The Sounders (3-1-1, 10 points) have never lost to the Fire, but all the MLS games have been close. They have allowed just 2 goals this season. David Estrada has scored 4 of their 6 goals.

Scouting the Fire: The Fire (2-1-2, 8 points) hopes to build on last week’s victory at Toronto now that it is playing every week. Chris Rolfe probably won’t play due to an ankle sprain, and Marco Pappa will be watched closely after playing Wednesday night in Guatemala for the Guatemala national team.

Next: at Chivas USA, 10 p.m. May 4 at Home Depot Center

— Orrin Schwarz