This day in baseball: Big Mac starts early
Posted: August 15, 2013 Filed under: 20th Century, This day in baseball | Tags: Baseball, history, Mark McGwire, Oakland Athletics Leave a commentOn 15 August 1990, Oakland’s Mark McGwire hits a game-winning grand slam as the A’s are victorious over the Red Sox, 6-2 in ten innings. In doing so, McGwire becomes the first player to hit at least thirty home runs in each of his first four Major League seasons.

Photo source: Razzball.com