At the Oakland Coliseum, Mark McGwire hits his 100th career home run off of Royals’ hurler Charlie Liebrandt. Big Mac’s third inning three-run home run ties the score at 5-5, but the A’s fall short, losing to Kansas City in extra innings, 12-9.

On July 5, 1989 — At the Oakland Coliseum, Mark McGwire hits his 100th career home run off of Royals’ hurler Charlie Liebrandt. Big Mac’s third inning three-run home run ties the score at 5-5, but the A’s fall short, losing to Kansas City in extra innings, 12-9.

Sources:
National Pastime January 28

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