10 Jul 1997: Mark McGwire #25 of the St. Louis Cardinals hits the ball during the game against the Houston Astros at the Busch Stadium in St. Louis, Missouri. The Cardinals defeated the Astros 6-3. Mandatory Credit: Stephen Dunn /Allsport
10 Jul 1997: Mark McGwire #25 of the St. Louis Cardinals hits the ball during the game against the Houston Astros at the Busch Stadium in St. Louis, Missouri. The Cardinals defeated the Astros 6-3. Mandatory Credit: Stephen Dunn /Allsport