In ice hockey, the goaltender is the player responsible for preventing the hockey puck from entering their team's net, thus preventing the opposing team from scoring. The goaltender usually plays in or near the area in front of the net called the goal crease. Goaltenders tend to stay at or beyond the top of the crease to cut down on the angle of shots. In today's age of goaltending there are two common styles, butterfly and hybrid. Because of the power of shots, the goaltender wears special equipment designed to protect the body from direct impact. The goalie is one of the most valuable players on the ice, as their performance can greatly change the outcome or score of the game. One-on-one situations, such as breakaways and shootouts, have the tendency to highlight a goaltender's pure skill, or lack thereof. No more than one goaltender is allowed to be on the ice for each team at any given time. Teams are not required to use a goaltender and may instead opt to play with an additional skater, but the defensive disadvantage this poses generally means that the strategy is only used as a desperation maneuver when trailing late in a game or can be used if the opposing team has a delayed penalty.