Capsule look at Revolution-Union

 When, where: Saturday, 7 p.m., at PPL Park, Chester, Pa.

 TV, radio: CSN, The Sports Hub 98.5.

 Records: Philadelphia 9-15-6 (33 points); Revolution 7-16-8 (29 points).

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 Formations: Philadelphia 4-2-3-1; Revolution 4-4-2.

 Goalkeepers: Philadelphia, Zac MacMath; Revolution, Bobby Shuttleworth.

 Coaches: Philadelphia, John Hackworth; Revolution, Jay Heaps.

 Referee: Jorge Gonzalez.

 Keys to game: Philadelphia — Adjust defensively to loss of Sheanon Williams; Revolution — Midfield direction from Benny Feilhaber.

 Out: Philadelphia — D Bakary Soumare (knee), D Sheanon Williams (suspended), F Krystian Witkowski (concussion); Revolution — D Florian Lechner (knee), D Stephen McCarthy (concussion), M Lee Nguyen (shoulder), D Tyler Polak (foot), F Saer Sene (knee), D Chris Tierney (hamstring/knee).