Philadelphia Union enter the postseason after accumulating 66 points in the regular season. Under the leadership of Head Coach Bradley Carnell, who took over at the helm during the offseason, and the direction of Sporting Director Ernst Tanner, the team has maintained consistent success through the entire year, boasting the best defense in MLS with just 35 goals conceded, protecting the home fortress with 12 home wins, and making a statement on the road with a club record of eight away wins.

The Boys in Blue were unbeaten against both of their potential opponents, claiming 10 out of a possible 12 points in the four games. Philadelphia swept the regular season series against Chicago, with a 1-0 road win in June followed up by a 4-0 shutout at Subaru Park in late August. Against Orlando City, the Union opened their record-breaking season with a 4-2 road win in Florida where they overcame a first-half deficit. The two sides last met in April with the two teams playing to a scoreless draw.