MLB investigating whether Marlins pitcher Jarred Cosart discussed sports betting with an alleged gambler on his Twitter account . Betting on baseball is a violation of the game 's rules . ' Comment:
MLB investigating whether Marlins pitcher Jarred Cosart discussed sports betting with an alleged gambler on his Twitter account . Betting on baseball is a violation of the game 's rules . ' I have not , nor will I ever , bet on the game of baseball , ' a tweet on Cosart 's now deleted account said .