what does it mean to be a number 10 in soccer
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]
Down (gridiron football) Each possession begins with first down. The line to gain is marked 10 yards downfield from the start of this possession, and the situation is described as "1st and 10" (if the goal line is less than 10 yards downfield, then the goal line is the line to gain and the situation is "1st and goal"). If the offensive team moves the ball past the line to gain, they make a new first down. If they fail to do this after a specified number of downs (four in American play and three in Canadian play), the team is said to turn the ball over on downs, and possession of the ball reverts to the opposing team at the spot where the ball was downed at the end of the last down.