CONMEBOL Copa Libertadores – Third Round (Second Leg)

27 February – 1 March 2019

Caracas – Melgar
Referee: Esteban Ostojich (URU, photo)
Assistant Referee 1: Nicolas Taran (URU)
Assistant Referee 2: Miguel Nievas (URU)
Fourth Official: Gustavo Tejera (URU)
Referee Assessor: Henry Gambetta (PER)

Palestino – Talleres
Referee: Leodan Gonzalez (URU)
Assistant Referee 1: Richard Trinidad (URU)
Assistant Referee 2: Gabriel Popovits (URU)
Fourth Official: Andres Matonte (URU)
Referee Assessor: Jose Buitrago (COL)

Atletico Mineiro – Defensor
Referee: Andres Rojas (COL)
Assistant Referee 1: Wilmar Navarro (COL)
Assistant Referee 2: Miguel Roldan (COL)
Fourth Official: John Ospina (COL)
Referee Assessor: Ubaldo Aquino (PAR)

Atletico Nacional  Club Libertad
Referee: Wilton Sampaio (BRA)
Assistant Referee 1: Bruno Pires (BRA)
Assistant Referee 2: Guilherme Dias (BRA)
Fourth Official: Ricardo Marques (BRA)
Referee Assessor: Jose Carpio (ECU)