Referee: Roberto Garcia (MEX, photo)
Assistant Referee 1: Marcos Quintero (MEX)
Assistant Referee 2: Juan Rangel (MEX)
Fourth Official: Marco Rodriguez (MEX)
14 March 2012
Santos Laguna – Seattle
Referee: Joel Aguilar (SLV)
Assistant Referee 1: William Torres (SLV)
Assistant Referee 2: Juan Zumba (SLV)
Fourth Official: Elmer Bonilla (SLV)
LA Galaxy – Toronto FC
Referee: Roberto Moreno (PAN)
Assistant Referee 1: Daniel Williamson (PAN)
Assistant Referee 2: Jaime Smith (PAN)
Fourth Official: Jafeth Perea (PAN)
15 March 2012
Pumas Unam – Isidro Metapan
Referee: Mark Geiger (USA)
Assistant Referee 1: Mark Hurd (USA)
Assistant Referee 2: Eric Boria (USA)
Fourth Official: Jair Marrufo (USA)