Botafogo beat Club Nacional 3-2. Marinho Chagas scored 2 goals.

1. 0'
   ⚽Kick-off
   CONMEBOL Libertadores 1973
   Referee: Humberto Dellacasa📍 MaracanãAttendance: 50,000
2. 1. First half
   2. 20'
      URU
      GOOOAL!IMIldo Maneiro
   3. 27'
      BRA
      GOOOAL!MCMarinho ChagasPenalty
   4. 45'
      BRA
      GOOOAL!MCMarinho Chagas
3. 1. Second half
   2. 65'
      BRA
      GOOOAL!JAJairzinho
   3. 87'
      URU
      GOOOAL!LCLuis Cubilla