1989 American League Championship Series was played between the Oakland Athletics and the Toronto Blue Jays from October 3 to 8 . A dominant Oakland team took the Series four games to one , en route to a sweep of their cross-bay rivals , the San Francisco Giants , in a World Series marred by the destructive Loma Prieta earthquake
Loma Prieta earthquake
1989 Loma Prieta earthquake
1989 American League Championship Series