Update (April 13, 2:37 pm ET)
Ismail Elfath has now been assigned to be the head referee for Saturday's match between Real Salt Lake and the Vancouver Whitecaps, replacing Allen Chapman, who was originally scheduled to officiate the match.
Original Text (April 12, 1:25 pm ET)
The Professional Referee Organization has announced the referee assignments for Week 7 of the 2016 MLS season:
WEDNESDAY, APRIL 13
Sporting Kansas City vs. Colorado Rapids
Children's Mercy Park (8:30 pm ET; MLS LIVE)
REF: ROBERT SIBIGA
AR1: Sean Hurd
AR2: Jason White
4TH: Nima Saghafi
San Jose Earthquakes vs. New York Red Bulls
Avaya Stadium (10:30pm ET, MLS LIVE)
REF: DAVE GANTAR
AR1: Frank Anderson
AR2: Michael Kampmeinert
4TH: Alejandro Mariscal
Portland Timbers vs. FC Dallas
Providence Park (10:30pm ET, MLS LIVE)
REF: JUAN GUZMAN
AR1: Jeff Hosking
AR2: Cameron Blanchard
4TH: Daniel Radford
FRIDAY, APRIL 15
Houston Dynamo vs. LA Galaxy
BBVA Compass Stadium (7pm ET, UniMás in US, MLS LIVE in Canada)
REF: MARK GEIGER
AR1: Matthew Nelson
AR2: Logan Brown
4TH: Nima Saghafi
SATURDAY, APRIL 16
Chicago Fire vs. Montreal Impact
Toyota Park (5pm ET, TVA Sports in Canada, MLS LIVE in US)
REF: KEVIN STOTT
AR1: Peter Balciunas
AR2: Kyle Longville
4TH: Fotis Bazakos
D.C. United vs. Toronto FC
RFK Stadium (5pm ET, TSN4 in Canada, MLS LIVE in US)
REF: MATHIEU BOURDEAU
AR1: Craig Lowry
AR2: Oscar Mitchell-Carvalho
4TH: Jose Carlos Rivero
Columbus Crew vs. New York City
MAPFRE Stadium (7:30pm ET, MLS LIVE)
REF: TED UNKEL
AR1: Peter Manikowski
AR2: Gianni Facchini
4TH: Jorge Gonzalez
Colorado Rapids vs. New York Red Bulls
Dick's Sporting Goods Park (9pm ET, MLS LIVE)
REF: RICARDO SALAZAR
AR1: Anthony Vasoli
AR2: Jeffrey Greeson
4TH: Edvin Jurisevic
Real Salt Lake vs. Vancouver Whitecaps
Rio Tinto Stadium (10pm ET, TSN in Canada, MLS LIVE in US)
REF:
ALLEN CHAPMAN
ISMAIL ELFATH
AR1: Brian Dunn
AR2: Eduardo Mariscal
4TH: Daniel Radford
Seattle Sounders vs. Philadelphia Union
CenturyLink Field (10pm ET, MLS LIVE)
REF: DREW FISCHER
AR1: Mike Rottersman
AR2: Claudiu Badea
4TH: Alejandro Mariscal
Portland Timbers vs. San Jose Earthquakes
Providence Park (10:30pm ET, MLS LIVE)
REF: CHRIS PENSO
AR1: Corey Parker
AR2: Apolinar Mariscal
4TH: Alex Chilowicz
SUNDAY, APRIL 17
Orlando City vs. New England Revolution
Citrus Bowl (3:30pm ET, ESPN, WatchESPN, ESPN Deportes in US, MLS LIVE in Canada)
REF: BALDOMERO TOLEDO
AR1: Kermit Quisenberry
AR2: Kevin Klinger
4TH: Rubiel Vazquez
FC Dallas vs. Sporting Kansas City
Toyota Stadium (7pm ET, FS1, FOX Sports GO, FOX Deportes in US, MLS LIVE in Canada)
REF: HILARIO GRAJEDA
AR1: Ian Anderson
AR2: James Conlee
4TH: Mark Geiger