The Professional Referee Organization has announced the referee assignments for Week 34 of the 2015 MLS season, including the 10 crucial #DecisionDay matches on Sunday.

Wednesday, October 21

Sporting Kansas City vs. Colorado Rapids

Sporting Park (8:30 pm ET; MLS LIVE)

REF: FOTIS BAZAKOS

AR1: CJ Morgante

AR2: Anthony Vasoli

4TH: Nima Saghafi

Sunday, October 25

Columbus Crew SC vs. D.C. United

MAPFRE Stadium (5 pm ET; FS1, FOX Deportes)

REF: ISMAIL ELFATH

AR1: Ian Anderson

AR2: Kevin Klinger

4TH: Silviu Petrescu

Philadelphia Union vs. Orlando City SC

PPL Park (5 pm ET; MLS LIVE)

REF: CHRIS PENSO

AR1: Sean Hurd

AR2: Jeff Muschik

4TH: Robert Sibiga

Montreal Impact vs. Toronto FC

Stade Saputo PPL Park (5 pm ET; TSN2, RDS, MLS LIVE)

REF: ALAN KELLY

AR1: Adam Wienckowski

AR2: Eric Weisbrod

4TH: Hilario Grajeda

New York City FC vs. New England Revolution

Yankee Stadium (5 pm ET; MLS LIVE)

REF: JAIR MARRUFO

AR1: Corey Rockwell

AR2: Adam Garner

4TH: Marcos De Oliveira

Chicago Fire vs. New York Red Bulls

Toyota Park (7 pm ET; ESPN3, MLS LIVE)

REF: RICARDO SALAZAR

AR1: Brian Dunn

AR2: Jeremy Hanson

4TH: Mathieu Bourdeau

Portland Timbers vs. Colorado Rapids

Providence Park (7 pm ET; ESPN3, MLS LIVE)

REF: BALDOMERO TOLEDO

AR1: Greg Barkey

AR2: Mike Rottersman

4TH: Edvin Jurisevic

Vancouver Whitecaps vs. Houston Dynamo

BC Place (7 pm ET; TSN2, ESPN3, MLS LIVE)

REF: KEVIN STOTT

AR1: Brian Poeschel

AR2: Kyle Atkins

4TH: Nima Saghafi

FC Dallas vs. San Jose Earthquakes

Toyota Stadium (7 pm ET; ESPN3, MLS LIVE)

REF: ARMANDO VILLARREAL

AR1: Peter Manikowski

AR2: Corey Parker

4TH: Juan Guzman

Seattle Sounders vs. Real Salt Lake

CenturyLinkField (7 pm ET; ESPN3, MLS LIVE)

REF: SORIN STOICA

AR1: Craig Lowry

AR2: James Conlee

4TH: Drew Fischer

Sporting Kansas City vs. LA Galaxy

Sporting Park (7 pm ET; ESPN, ESPN3)

REF: MARK GEIGER

AR1: George Gansner

AR2: Kermit Quisenberry

4TH: Allen Chapman