Plus, there'd be butts strewn in the grass
A history of baseball and chewing tobacco in Slate. How things change (emphasis added):
The sudden decline of former batting champion and career .308 hitter Michael "King" Kelly--he hit just .189 in 1892 and was only able to play 78 games--was attributed to his longtime habit of smoking while patrolling the outfield.
Never mind the chaw. Can you imagine Johnny Damon, chilling out in left field, with a cigarette dangling from his lip? How does a guy shag flies while smoking?