The pick and roll (also called a ball screen or screen and roll) in basketball is an offensive play in which a player sets a screen (pick) for a teammate handling the ball and then moves toward the basket (rolls) to receive a pass. In the NBA, the play came into vogue in the 1990s and has developed into the league's most common offensive action. There are, however, many ways in which the defense can also counter the offensive screen. Execution The play (in its elementary form) involves three players. The play begins with a defender guarding a ballhandler. The ballhandler moves toward a teammate, who sets a "screen" (or "pick") by standing in the way of the defender, who is separated from the moving ballhandler. The defender is forced to choose between guarding the ballhandler and the screener. If the defender tries to guard the ballhandler, then the screener can move toward the basket (as the player defending the screener may try to trap or guard the ballhandler, giving the screener space) sometimes by a foot pivot ("roll"), and is now open for a pass. If the defender chooses instead to guard the screening teammate, then the ballhandler has an open shot. Alternatively, the ballhandler may pass the ball to an open teammate. A well-executed pick and roll is the result of teamwork, but many players fail by executing the play too quickly; they must ignore the defense and control their own speed. The pick and roll is often employed by a shorter guard handling the ball and a taller forward or center setting the screen; if the taller defender switches to guard the ballhandler, then the offensive team can have favorable mismatches. The shorter guard has a speed advantage over the taller defender, while the taller forward/center has a size advantage over the shorter defender. Results A successful pick and roll play may result in the screener being in position to receive a pass with a clear path for an easy shot, with the chance of drawing a foul as other defenders move toward the play to try to prevent penetration. It may alternately lead to the ballhandler being momentarily without a defender, and thus free to pass to any open teammate, or take an uncontested shot, which greatly improves the chance of scoring, again with the chance of drawing a foul as the screened defender hurries to