Major League Baseball and the Professional Baseball Athletic Trainers Society (PBATS) have teamed up for a public service ad highlighting the dangers of using smokeless tobacco. The 60-second ad, which will air on MLB Network and on scoreboards throughout MLB, is the personal account of former Major Leaguer Curt Schilling. Schilling was diagnosed with oral cancer in 2014 and attributes his cancer, which is in remission after treatment, to his use of dipping.