Football is essentially a sport where there are 2 teams present of either 5,6,7,8,9,10,11 players and 3-5 subsituties and a coach/manager. The idea of the sport is to be able to put the ball into your opponent's goal via the means of kicking, passing and or dribbling. Everytime a goal is scored the game is restarted back to the point of kick-off by the team that has conceded the goal. A game of football typically lasts till 90 mins however, this timing can be changed depending on the format that is being played. In order to ensure that the players are in accordance with all of the rules and regulations, there are referees. Essentially there is one main referee who stands inside the pitch and then there are 2 “linesman” that stand on the side in order to judge weather the ball has gone out of bounds or there has been an offside.