NFL has a smokeless tobacco habit, too -- it's not just baseball - ESPN
Despite dangers and bans, smokeless tobacco still a staple in baseball dugouts
Tobacco Use Still Prevalent Among Professional Athletes - Global Sport Matters
Baseball rookies to face penalty next year if they opt to chew tobacco during the game
Tobacco warnings just spit in the wind
Gwynn's death renews call for chewing tobacco ban – Sun Sentinel
Tony Gwynn Day declared in California
Tony Gwynn family settles case against U.S. Smokeless Tobacco Company
MLB Sends Reminder: No Dipping at Fenway, Dodger Stadium, SF
Campaign For Tobacco-Free Baseball Stadiums
San Diego Padres Legend Tony Gwynn Dies at 54 - WSJ
Tony Gwynn Passes Away at 54, NewsCenter
Tony Gwynn's final days: Did tobacco kill Padres legend? - Sports Illustrated