Spitting is part of baseball tradition and will be tough to quit, historian says | CBC Radio
Baseball and the Slow Death of Chewing Tobacco - Twins - Twins Daily
Time to spit out chewing tobacco for good in Major League Baseball - CBSSports.com
Smokeless Tobacco Is Gone From the Ballpark, if Not the Clubhouse - The New York Times
Tony Gwynn attributed his cancer to chewing tobacco - NBC Sports
There's nothing glamorous about chewing tobacco
California lawmakers ban tobacco chewing, something Major League Baseball couldn't do | Globalnews.ca
California tells MLB players: No more chewing tobacco - MarketWatch
New York moves a step closer to banning smokeless tobacco at Yankee Stadium and Citi Field, takes aim at curbing growth of hookah bars – New York Daily News
New York's chewing tobacco ban shows dipping is yesterday's pastime | MLB | The Guardian
San Francisco Becomes First U.S. City To Ban Chewing Tobacco At Ballparks
Front and Center: Smokeless tobacco still a part of baseball but more awareness in recent years – Times Herald Online
Baseball adapting to stricter rules on tobacco
Mets, Yanks react to smokeless tobacco ban
Death of baseball's Tony Gwynn sheds light on dangers of smokeless tobacco | Fred Hutchinson Cancer Center
Diamondbacks reliever quits tobacco use after Tony Gwynn's death