Cricket is a bat-and-ball game played between two teams of eleven players each on a cricket field, at the centre of which is a rectangular 22-yard-long pitch with a target called the wicket (a set of three wooden stumps upon which two bails sit) at each end. Each phase of play is called an innings during which one team bats, attempting to score as many runs as possible, whilst their opponents field. Depending on the type of match, the teams have one or two innings apiece and, when the first innings ends, the teams swap roles for the next innings. Except in matches which result in a draw, the winning team is the one that scores the most runs, including any extras gained.
Before a match begins, the two team captains meet on the pitch for the toss (of a coin) to determine which team will bat first. Two batsmen and eleven fielders then enter the field and play begins when a member of the fielding team, known as the bowler, delivers (i.e., bowls) the ball from one end of the pitch towards the wicket at the other end, which is guarded by one of the batsmen, known as the striker.
In addition to the bowler, the fielding team includes the wicket-keeper, a specialist who stands behind the striker's wicket. The wicket-keeper is also the only player on the fielding side permitted to wear gloves. The nine other fielders are tactically deployed around the field by their captain, usually in consultation with the bowler.