The Philadelphia Union (No. 1) look to build on their magical Supporters' Shield-winning regular season when they host eighth-seeded Chicago Fire FC Sunday in Game 1 of their Eastern Conference Round One Best-of-3 Series.

MLS Season Pass, Apple TV

FS1, FOX Deportes

When

Sunday, Oct. 26 | 5:30 pm ET/2:30 pm PT

Where

Subaru Park | Philadelphia, Pennsylvania

This Round One series winner will face Charlotte FC (No. 4) or New York City FC (No. 5) in the Western Conference Semifinals, held Nov. 22-23.

To get there, Philadelphia or Chicago must win two matches across this series opener, Game 2 (Nov. 1) and Game 3 (Nov. 8).

No extra time will be played if a Round One match is tied after regulation time (90 minutes). Instead, a penalty kick shootout will determine the winner.

Pla

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