NCAA football

College football is American football played by teams of student athletes fielded by American universities, colleges, and military academies, or Canadian football played by teams of student athletes fielded by Canadian universities. It was through college football play that American football rules first gained popularity in the United States. No minor league farm organizations exist in American football. Therefore, college football is generally considered to be the second tier of American football in the United States; one step ahead of high school competition, and one step below professional competition. It is in college football where a player's performance directly impacts his chances of playing professional football. The best collegiate players will typically declare for the professional draft after 3 to 4 years of collegiate competition, with the NFL holding its annual draft every spring. 256 players are selected annually. Those not selected can still attempt to land an NFL roster spot as an undrafted free agent.

Even after the emergence of the professional National Football League (NFL), college football remained extremely popular throughout the U.S. Although the college game has a much larger margin for talent than its pro counterpart, the sheer number of fans following major colleges provides a financial equalizer for the game, with Division I programs – the highest level – playing in huge stadiums, six of which have seating capacity exceeding 100,000. In many cases, college stadiums employ bench-style seating, as opposed to individual seats with backs and arm rests. This allows them to seat more fans in a given amount of space than the typical professional stadium, which tends to have more features and comforts for fans. (Only two stadiums owned by U.S. colleges or universities – Papa John's Cardinal Stadium at the University of Louisville and FAU Stadium at Florida Atlantic University – consist entirely of chairback seating.)

College athletes, unlike players in the NFL, are not permitted by the NCAA to be paid salaries. Colleges are only allowed to provide non-monetary compensation such as athletic scholarships that provide for tuition, housing, and books.

...
Wikipedia