Sport: RULES OF THE RINK

Face-Off. Hockey's version of the jump ball in basketball, in which the referee drops the puck between two opposing players to initiate play. Besides the blue center circle, eight red face-off dots are positioned at strategic points about the rink to get the puck back into action after a referee's whistle stops the game. Among the most common: the "end-zone face-off," which usually occurs after a goalie blocks a shot at the net, and the "last-play face-off," which takes place at the point where play has been stalled or the puck has flown off the ice.

Blue Lines. Twin lines...