The latest refereeing assignments have been announced for the upcoming week of Major League Soccer action.

WEDNESDAY, SEPTEMBER 3

Philadelphia Union vs. Toronto FC
PPL Park (7 pm ET)
REFEREE: JOSE CARLOS RIVERO
AR1: Adam Wienckowski
AR2: Oscar Mitchell-Carvalho
4TH: Sorin Stoica

New England Revolution vs. Sporting Kansas City
Gillette Stadium (7:30 pm ET)
REFEREE: ISMAIL ELFATH
AR1: Craig Lowry
AR2: Scott Kachmarik
4TH: Alan Kelly

Chivas USA vs. Seattle Sounders
StubHub Center (10:30 pm ET)
REFEREE: TED UNKEL
AR1: Ian Anderson
AR2: Jonathan Johnson
4TH: Kevin Stott

FRIDAY, SEPTEMBER 5

LA Galaxy vs. Colorado Rapids
StubHub Center (10:30 pm ET)
REFEREE: BALDOMERO TOLEDO
AR1: Fabio Tovar
AR2: Baboucarr Jallow
4TH: Juan Guzman

SATURDAY, SEPTEMBER 6

Toronto FC vs. Philadelphia Union
BMO Field (2 pm ET)
REFEREE: ALAN KELLY
AR1: Jeff Muschik
AR2: Gianni Facchini
4TH: Mark Kadlecik

New York Red Bulls vs. Sporting Kansas City
Red Bull Arena (7:30 pm ET)
REFEREE: HILARIO GRAJEDA
AR1: Bill Dittmar
AR2: Kevin Klinger
4TH: Jose Carlos Rivero

Houston Dynamo vs. Montreal Impact
BBVA Compass Stadium (8:30 pm ET)
REFEREE: FOTIS BAZAKOS
AR1: Chris Strickland
AR2: Felisha Mariscal
4TH: Ismail Elfath

Real Salt Lake vs. FC Dallas
Rio Tinto Stadium (10 pm ET)
REFEREE: ARMANDO VILLARREAL
AR1: Mike Rottersman
AR2: Richard Gamache
4TH: Tyler Ploeger

Vancouver Whitecaps vs. D.C. United
BC Place (10 pm ET)
REFEREE: DREW FISCHER
AR1: Ian Anderson
AR2: Eric Boria
4TH: Younes Marrakchi

SUNDAY, SEPTEMBER 7

Columbus Crew vs. Chivas USA
Columbus Crew Stadium (3 pm ET)
REFEREE: GEOFF GAMBLE
AR1: Greg Barkey
AR2: Brian Dunn
4TH: Kevin Terry Jr.

Portland Timbers vs. San Jose Earthquakes
Providence Park (5 pm ET)
REFEREE: ALLEN CHAPMAN
AR1: George Gansner
AR2: Paul Scott
4TH: Daniel Radford

New England Revolution vs. Chicago Fire
Gillette Stadium (7 pm ET)
REFEREE: CHRIS PENSO
AR1: Claudiu Badea
AR2: Danny Thornberry
4TH: Daniel Fitzgerald