Mark McGwire, Baseball Cards Wiki
Do MLB players ever intentionally get hit by a pitch? - Quora
List of Major League Baseball career home run leaders - Wikiwand
St. Louis Cardinals - Wikipedia
John Mabry - Wikiwand
David Freese - Wikipedia
Mark McGwire 62 Home Runs St louis cardinals baseball, St louis baseball, Stl cardinals baseball
1999 St. Louis Cardinals Season, 978-613-4-99545-0, 6134995452 ,9786134995450
Sammy Sosa: When Sammy Sosa expressed pride about his 1998 home run chase with Mark McGwire despite PED allegations
Mark McGwire - The RBI Baseball Database