Here are the Professional Referees Organization ref assignments for this weekend's MLS play.
SATURDAY 04/13/13
Vancouver Whitecaps vs. Real Salt Lake, BC Place (4:00pm ET)
REFEREE: DREW FISCHER
ASST 1: Jeff Hosking
ASST 2: Jonathan Johnson
4TH: Fotis Bazakos
Seattle Sounders vs. New England Revolution, Centurylink Field (4:00pm ET)
REFEREE: CHRIS PENSO
ASST 1: Mike Rottersman
ASST 2: Baboucarr Jallow
4TH: Tyler Ploeger
Montreal Impact vs. Columbus Crew, Stade Saputo (2:00pm ET)
REFEREE: MARK GEIGER
ASST 1: Joe Fletcher
ASST 2: Matthew Nelson
4TH: Jose Carlos Rivero
Philadelphia Union vs. Toronto FC, PPL Park (4:00pm ET)
REFEREE: SORIN STOICA
ASST 1: Sean Hurd
ASST 2: Craig Lowry
4TH: Daniel Fitzgerald
FC Dallas vs. LA Galaxy, FC Dallas Sports Park (7:30pm ET)
REFEREE: BALDOMERO TOLEDO
ASST 1: Fabio Tovar
ASST 2: Chris Strickland
4TH: Armando Villarreal
D.C. United vs. New York Red Bulls, RFK Stadium (7:00pm ET)
REFEREE: JAIR MARRUFO
ASST 1: Adam Wienckowski
ASST 2: Jason Cullum
4TH: Mark Kadlecik
Chivas USA vs. Colorado Rapids, Home Depot Center (10:30pm ET)
REFEREE: KEVIN STOTT
ASST 1: Brian Poeschel
ASST 2: Jeremy Hanson
4TH: Daniel Radford
04/14/13
Houston Dynamo vs. Chicago Fire, BBVA Compass (5:00pm ET)
REFEREE: EDVIN JURISEVIC
ASST 1: Eric Proctor
ASST 2: James Conlee
4TH: Ismail Elfath
Portland Timbers vs. San Jose Earthquakes, JELD-WEN Field (10:30pm ET)
REFEREE: HILARIO GRAJEDA
ASST 1: Paul Scott
ASST 2: Bill Dittmar
4TH: Allen Chapman
