>>149852344
They just look more roided than other sports.

>short burst/long rest game
Sprinters are massive, marathon runners are skinny. The same applies here. A DH might swing at 20 pitches

>arm strength is key to all positions
A soccer player doesn't need biceps.

>uniform exposes the arms
Giant biceps are easier for people to identify as "roided" than giant quadriceps.