what is the role of a number 9 in football
Squad number (association football) For instance, "1" is frequently used by the starting goalkeeper, as the goalkeeper is the first player in a line-up.[1] It is also the only position on the field that is required to be occupied. "10" is one of the most emblematic squad numbers in football, due to the sheer number of football legends that used the number 10 shirt; playmakers, second strikers and attacking midfielders usually wear this number.[1] "7" is often associated with effective and profitable wingers or second strikers.[1] "9" is usually worn by centre forwards or strikers, who hold the most advanced offensive positions on the pitch, and are often the highest scorers in the team.[1]
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]