CONCACAF Champions League – Preliminary Round (First Leg)

27-28 July 2011

San Francisco – Seattle Sounders

Referee: David Espana (GUA)
Assistant Referee 1: Ronaldo Dela Cruz (GUA)
Assistant Referee 2: Cesar Ruano (GUA)
Fourth Official: Oscar Reyna (GUA)

Herediano – Alpha United

Referee: Oscar Davila (NCA)
Assistant Referee 1: William Rocha (NCA)
Assistant Referee 2: Angel Guzman (NCA)
Fourth Official: Franklyn Jarquin (NCA)

Toronto FC – Real Esteli FC

Referee: Ricardo Salazar (USA, photo)
Assistant Referee 1: Kermit Quisenberry (USA)
Assistant Referee 2: Eric Boria (USA)
Fourth Official: Edvin Jurisevic (USA)

Isidro Metapan – Puerto Rico Islanders

Referee: Jafeth Perea (PAN)
Assistant Referee 1: Jaime Smith (PAN)
Assistant Referee 2: Ariel Mendez (GUA)
Fourth Official: Otto Barrios (GUA)

Santos Laguna FC – CD Olimpia
Referee: Joel Aguilar (SLV)
Assistant Referee 1: William Torres (SLV)
Assistant Referee 2: Juan Zumba (SLV)
Fourth Official: Ruben Medrano (SLV)

Monarcas Morelia – Tempete FC
Referee: Hector Rodriguez (HON)
Assistant Referee 1: Oscar Velasquez (HON)
Assistant Referee 2: Rafael Beltran (HON)
Fourth Official: Erick Andino (HON)

Alianza FC – FC Dallas

Referee: David Gantar (CAN)
Assistant Referee 1: Darren Clark (CAN)
Assistant Referee 2: Philippe Briere (CAN)
Fourth Official: Paul Ward (CAN)

CD Motagua – CSD Municipal

Referee: Roberto Moreno (PAN)
Assistant Referee 1: Daniel Williamson (PAN)
Assistant Referee 2: Rey Mendoza (PAN)
Fourth Official: Luis Rodriguez (PAN)