CREATE TABLE table_17968274_2 (team VARCHAR)
SELECT 1989 AS _90 FROM table_17968274_2 WHERE team = "Vélez Sársfield"
ทีมเบเลซ ซาร์สฟิลด์เล่นไปกี่เกมในช่วงปี 1989-90?
How many games were played by the Vélez Sársfield team from 1989-90?