kick the can
College baseball in the USA has no academic courses that are required to play college baseball.
No, you do not need to go to college to play baseball.
no
yes of course. But the college will need to see you play in a game though.
There are no specific classes required to play for the NFL. They typically draft out of the College football system, so typically expect their players to have completed 2 or more years of college, some as many as 5 years of college.
Marshall College
No
No you do not
they don't get paid in college
Santa Ana Junior College
There are no class requirements to play for the NFL. The NFL drafts from college football and don't have a farm system like baseball or hockey. You can declare yourself eligible for the draft without graduating college. Some go in the third year, but most complete 4 years of college football.