Boca Juniors beat San Lorenzo 2-0. San Lorenzo played with ten from minute 21.

1. 0'
   ⚽Kick-off
   Primera División 1988/89
   Referee: Francisco Oscar Lamolina.Attendance: 27,034
2. 1. First half
   2. 21'
      ARG
      Red card
      RIRifourcat
3. 1. Second half
   2. 65'
      ARG
      GOOOAL!AGAlfredo O. Graciani
   3. 88'
      ARG
      GOOOAL!JCJorge Alberto Comas