Although there are no penalties or testing for the use of performance-enhancing substances in Major League Baseball, the discovery of a jar of androstenedione in Mark McGwire’s locker garners much attention. The Cardinal slugger, who will finish the season with a record 70 home runs, will admit he uses the steroid precursor.

This Day In Baseball

On August 22, 1998 — Although there are no penalties or testing for the use of performance-enhancing substances in Major League Baseball, the discovery of a jar of androstenedione in Mark McGwire’s locker garners much attention. The Cardinal slugger, who will finish the season with a record 70 home runs, will admit he uses the steroid precursor.

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Sources:
Baseball Reference August 22
National Pastime August 22
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game