Copa Libertadores – Round of 16 (Second Leg)

8 May 2013

Atletico Mineiro – Sao Paulo

Referee: Roberto Silvera (URU, photo)
Assistant Referee 1: Carlos Pastorino (URU)
Assistant Referee 2: Gabriel Popovits (URU)
Fourth Official: Daniel Fedorczuk (URU)
Referee Observer: Edson Resende (BRA)

Fluminense – Emelec

Referee: Victor Carrillo (PER)
Assistant Referee 1: Johny Bossio (PER)
Assistant Referee 2: Cesar Escano(PER)
Fourth Official: Henry Gambetta (PER)
Referee Observer:Armando Marques (BRA)

Nacional – Real Garcilaso

Referee: Carlos Amarilla (PAR)
Assistant Referee 1: Rodney Aquinos (PAR)
Assistant Referee 2: Milciades Saldivar (PAR)
Fourth Official: Mario De Vivar (PAR)
Referee Observer: Gustavo Lopes (URU)