Football. Fill in the blanks.

Wstaw podane słowa w wolne miejsca w zdaniach.
team players goalkeeper penalty area guards substitutions referee assistant
Players, equipment and officials. Each   consists of a maximum of eleven   (excluding substitutes), one of whom must be the   . They are the only players allowed to play the ball with their hands or arms, but they are only allowed to do so within the   in front of their own goal. Though there are a variety of positions in which the outfield (non-goalkeeper) players are strategically placed by a coach, these positions are not defined or required by the Laws. The basic equipment (kit) players are required to wear includes a shirt, shorts, socks, footwear and adequate shin   . A number of players may be replaced by substitutes during the course of the game. The maximum number of   permitted in most competitive international and domestic league games is three, though the number permitted may be varied in other leagues or in friendly matches. A game is officiated by a   , who has "full authority to enforce the Laws of the Game in connection with the match to which he has been appointed", and whose decisions are final. The referee is aided by two   referees.