Oakland A’s first baseman Mark McGwire breaks Al Rosen’s American League rookie record, established in 1950, and ties the major league mark shared by Frank Robinson (1956) and Wally Berger (1930) when he hits his 38th homer of the season. The unanimous choice for Rookie of the Year will finish the season with 49 homers, smashing the existing major league record.

August 11, 1987November 19, 2021 This Day In Baseball

On August 11, 1987 — Oakland A’s first baseman Mark McGwire breaks Al Rosen’s American League rookie record, established in 1950, and ties the major league mark shared by Frank Robinson (1956) and Wally Berger (1930) when he hits his 38th homer of the season. The unanimous choice for Rookie of the Year will finish the season with 49 homers, smashing the existing major league record.

Source:
Baseball Reference August 11
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game

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