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CONMEBOL U-20 Championship 2023

Colombia, 19 January – 12 February 2023

Referee: Nicolas Lamolina (ARG, photo)
Assistant Referee 1: Maximiliano Del Yesso (ARG)
Assistant Referee 2: Facundo Rodriguez (ARG)

Referee: Ivo Mendez (BOL)
Assistant Referee 1: Ariel Guizada (BOL)
Assistant Referee 2: Carlos Tapia (BOL)

Referee: Braulio Machado (BRA)
Assistant Referee 1: Fabricio Vilarinho (BRA)
Assistant Referee 2: Rafael Alves (BRA)

Referee: Cristian Garay (CHI)
Assistant Referee 1: Claudio Urrutia (CHI)
Assistant Referee 2: Alejandro Molina (CHI)

Referee: Carlos Ortega (COL)
Assistant Referee 1: John Leon (COL)
Assistant Referee 2: John Gallego (COL)

Referee: Guillermo Guerrero (ECU)
Assistant Referee 1: Ricardo Baren (ECU)
Assistant Referee 2: Dennys Guerrero (ECU)

Referee: Derlis Lopez (PAR)
Assistant Referee 1: Roberto Canete (PAR)
Assistant Referee 2: Luis Onieva (PAR)

Referee: Augusto Menendez (PER)
Assistant Referee 1: Stephen Atoche (PER)
Assistant Referee 2: Leonar Soto (PER)

Referee: Gustavo Tejera (URU)
Assistant Referee 1: Andres Nievas (URU)
Assistant Referee 2: Horacio Ferreira (URU)

Referee: Yender Herrera (VEN)
Assistant Referee 1: Lubin Torrealba (VEN)
Assistant Referee 2: Alberto Ponte (VEN)

UEFA Referee Exchange
Referee: Antonio Nobre (POR)
Assistant Referee 1: Bruno Alves (POR)
Assistant Referee 2: Luciano Maia (POR)

Referee Assessors
1. Angel Sanchez (ARG)
2. Jose Buitrago (COL)
3. Fredy Arellanos (PER)