McGwire vs. Sosa: The Great Home Run Race of 1998 – The Falcon Press
What you need to know about Sosa-McGwire home run chase before watching 'Long Gone Summer' - ESPN
The 1998 Home Run Race: Sammy Sosa Vs. Mark McGwire
1998 home run chase 25 years later: A look at McGwire, Sosa vs. Reds
Watch all of Mark McGwire's 70 homers from 1998
Timeline: Sammy Sosa vs. Mark McGwire in 1998
Timeline: Sammy Sosa vs. Mark McGwire in 1998
Timeline: Sammy Sosa vs. Mark McGwire in 1998
Timeline: Sammy Sosa vs. Mark McGwire in 1998
I don't feel cheated one bit' -- Pitchers who gave up home runs to both McGwire and Sosa in '98 tell their tales - ESPN
How Much of a Role Did Steroids Play in the Steroid Era? - The Ringer
1998 Major League Baseball home run record chase - Wikipedia