Former St. Louis Cardinal Mark McGwire testifies at a hearing on Capitol Hill in Washington Thursday, March 17, 2005, on the use...

Feb 25, 2001; Jupiter, FL, USA: St. Louis Cardinals first baseman Mark McGwire (left) talks with Cardinals manager Tony La Russa during spring training at Roger Dean Stadium

...20, 1999, that will identify a 6 mile stretch of the interstate in St. Louis as "Mark McGwire Highway." McGwire, the St. Louis baseball Cardinals slugger hit 70 home runs during the 1998 baseball...

WASHINGTON - MARCH 17: Former St. Louis Cardinal Mark McGwire pauses during testimony March 17, 2005 for a House Committee session that is investigating Major League...

ST. LOUIS, UNITED STATES: St. Louis Cardinals' Mark McGwire salutes the crowd after hitting a solo home run off Atlanta Braves relief pitcher Mike Remlinger...

ST. LOUIS - OCTOBER 12: Mark McGwire #25 of the St.Louis Cardinals salutes the crowd during team introductions before Game three of...

Former St. Louis Cardinal Mark McGwire testifies at a hearing on Capitol Hill in Washington Thursday, March 17, 2005, on the use...

St. Louis Cardinals' Mark McGwire studies the pitcher as he waits in the dugout to bat against the Chicago Cubs in...

378826 01: St. Louis Cardinals manager Tony LaRussa, right, and slugger Mark McGwire pose for a photograph in the lockeroom as the team celebrates their National League Central Division...

CHICAGO, UNITED STATES: St. Louis Cardinals slugger Mark McGwire salutes the team's owner in the stands on his return to the dugout after blasting...

May 25, 1998. Rockies at Cards. Mark McGwire

Mark McGwire retired after the 2001 season and has been mostly absent from the public eye since

Zoom Gallery: Baseball's Big Anniversary's

High res photos of special moments in baseball history that we celebrate an important anniversary of in 2008.

...San Francisco Giants is congratulated by teammates Devon White #22 of the Arizona Diamondbacks (L) and Mark McGwire #25 of the St. Louis Cardinals (R) after Bonds hit a home run during the All...

12 Jul 1999: Mark McGwire #25 of the National League Team hits the ball during the 1999 MLB All-Star Home...