Why Do Baseball Players Chew Tobacco?
Cancer victim educates others about dangers of 'spit' tobacco
NFL has a smokeless tobacco habit, too -- it's not just baseball - ESPN
Will Tony Gwynn's death be wake-up call in MLB?
Ballplayers are in a pinch
Can MLB players chew tobacco? - Quora
Memo To Major League Baseball: Get Smokeless Tobacco Out Of The Game
Smokeless tobacco: Facts, stats, and regulations
2020 MLB Season: The toughest in new proposal? No spitting
Explained: Why the ban on spitting is tough to swallow for baseball players
A history of baseball and chewing tobacco.
A's, Giants working to kick their spitting, high-fiving, finger-licking habits
MLB on a mission to ban chewing tobacco
Spitting Image: Smokeless tobacco providing fallback for baseball players of all ages – The Mercury