No, but most players do.
enough
Yale
260 athletes have gone on to play professional football in the NFL
Miami Hurricanes and then the Florida State Seminoles
No, but most players do.
Most NFL teams will have open tryouts. Including players who were not drafted, players from semi-pro teams, free agents and players from other sports. Notable NFL players who never played college football are Antonio Gates (San Diego Tight End who played Basketball in college) and Carlton Hasselrig (Pittsburgh Linebacker who Wrestled in college).
Miami @ 42 players
Miami
enough
Florida Gators.
NCAA. The Players play for their college or for a future career, in NFL the guys just play for money.
TEnnessee
Miami
usc
high school.
Yale