Mark McGwire followed a 15-homer May with a 9-homer June as the Oakland Athletics rookie first baseman used those two months to establish himself as Major League Baseball's next big home run hitter.

Mark McGwire was a lot happier passing Reggie Jackson than he was catching him. McGwire passed Jackson for sixth place on the career home run list, and Matt Morris tied a career high with 11 ...

It was the month of May in 1987 that established Mark McGwire as an up-and-coming home run hitter. It was June 27-28 of that year that showed he’d arrived. McGwire had started the 1987 season in a ...