how many years of college football do you have to play to go pro
National Football League Draft Players who have been out of high school for at least three years are eligible for the NFL draft. The rules do not state that a player must attend college, but virtually all of the players selected in the NFL draft have played college football, usually in the United States but occasionally from Canadian universities as well. A few players are occasionally selected from other football leagues like the Arena Football League (AFL), the Canadian Football League (CFL), and the German Football League (GFL). A small handful of players have also been drafted from colleges who played other sports than football.
Marcus Álvarez
Free agent Players who are not drafted in a league's annual draft of amateur players are considered to be unrestricted free agents and are free to sign contracts with any team. In most North American professional sports, players are drafted by sequencing each team from worst to best (according to the teams' immediately preceding season record, sometimes invoking a draft lottery factor to avoid having teams intentionally lose their last games to gain higher draft position) and allowing said teams to claim rights to the top players entering the league that year. Players that pass through an entire draft (usually several rounds) without being selected by any of the league's teams become unrestricted free agents, and these players are sometimes identified simply as an undrafted free agent (UDFA) or undrafted sportsperson and are free to sign with any team they choose. The term "undrafted free agent" is most common in the National Football League, where rookies enter directly into the NFL and do not play in a minor league system. It can also occasionally be seen in the National Hockey League, which increasingly uses college hockey as a source; the NHL Entry Draft usually drafts players during high school age (i.e., junior leagues), which allows overlooked players who excel at the college level or in European professional leagues to bypass the draft and sign directly with the NHL.
American football Football games last for a total of 60 minutes in professional and college play and are divided into two-halves of 30 minutes and four-quarters of 15 minutes.[71][72] High school football games are 48 minutes in length with two-halves of 24 minutes and four-quarters of 12 minutes.[73] The two-halves are separated by a halftime period, and the first and third quarters are also followed by a short break.[71][72][74] Prior to the start of the game, the referee and team captains for each team meet at midfield for a coin toss. The visiting team is allowed to call 'heads' or 'tails'; the winner of the toss is allowed to decide between choosing whether to receive or kick off the ball or choosing which goal they want to defend, but they can also defer their choice until the second half. The losing team, unless the winning team decides to defer, is allowed to choose the option the winning team did not select, and receives the option to receive, kick, or select a goal to defend to begin the second half. Most teams choose to receive or defer, because choosing to kick the ball to start the game would allow the other team to choose which goal to defend.[75] Teams switch goals following the first and third quarters.[76] If a down is in progress when a quarter ends, play continues until the down is completed.[77][78][79]