Possession (sports) opportunity to score. In bat-and-ball games including baseball and cricket, the ball is controlled by the fielding team, which are on defense. In several sports, possession is exchanged after the offensive team scores, or when the defensive team physically takes control of a "live" (in play) ball through a fumble, interception, or steal. In gridiron football, possession is additionally controlled through a series of allotted plays called downs, over which the offensive team must move the ball a certain distance down the field, or lose possession. Possession at the start of a game, or in a neutral restart, may be
Field hockey with goalkeeping privileges are only permitted to play the ball with their stick. Further, a goalkeeper, or player with goalkeeping privileges who is wearing a helmet, must not take part in the match outside the 23m area they are defending, except when taking a penalty stroke. A goalkeeper must wear protective headgear at all times, except when taking a penalty stroke. For the purposes of the rules, all players on the team in possession of the ball are attackers, and those on the team without the ball are defenders, yet throughout the game being played you are always "defending" your