Ice Hockey Diagram — Defensive Strategy — Neutral Zone Trap

"Baseball is played between two teams with nine players in the field on each team. On a baseball field, the game is under authority of several umpires. There are usually four umpires in major league games; up to six (and as few as one) may officiate depending on the league and the importance of the game. There are four bases. Numbered counterclockwise, first, second and third bases are cushions (sometimes informally referred to as bags) shaped as 15 in (38 cm) squares which are raised a short distance above the ground; together with home plate, the fourth "base," they form a square with sides of 90 ft (27.4 m) called the diamond. Home base (usually called home plate) is a pentagonal rubber slab 17 in (43.2 cm) wide. The playing field is divided into three main sections:
(1) The infield, containing the four bases, is for general defensive purposes bounded by the foul lines and within the grass line (see figure).
(2) The outfield is the grassed area beyond the infield grass line between the foul lines, and bounded by a wall or fence.
(3) Foul territory is the entire area outside the foul lines.
The pitcher's mound is located in the center of the infield. It is an 18 ft (5.5 m) diameter mound of dirt no higher than 10 in (25.4 cm). Near the center of the mound is the pitching rubber, a rubber slab positioned 60 ft 6 in (18.4 m) from home plate. The pitcher must have one foot on the rubber at the start of every pitch to a batter, but the pitcher may leave the mound area once the ball is released." [Baseball rules. Wikipedia]
The baseball positions diagram example "Corner view baseball field" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Baseball solution from the Sport area of ConceptDraw Solution Park.

"A football pitch (also known as a football field or soccer field) is the playing surface for the game of football made of turf. Its dimensions and markings are defined by Law 1 of the Laws of the Game, "The Field of Play".
All line markings on the pitch form part of the area which they define. ...
Pitch boundary.
The pitch is rectangular in shape. The longer sides are called touchlines. The other opposing sides are called the goal lines. ... The two touch lines must also be of the same length... in international matches, the goal lines must be between 64 and 75 m (70 and 80 yd) long and the touchlines must be between 100 and 110 m (110 and 120 yd). All lines must be equally wide, not to exceed 12 centimetres (5 in). The corners of the pitch are demarcated by corner flags. ...
Goals.
Goals are placed at the centre of each goal-line. These consist of two upright posts placed equidistant from the corner flagposts, joined at the top by a horizontal crossbar. The inner edges of the posts must be 7.32 metres (8 yd) apart, and the lower edge of the crossbar must be 2.44 metres (8 ft) above the ground. Nets are usually placed behind the goal, though are not required by the Laws.
Goalposts and crossbars must be white, and made of wood, metal or other approved material." [Association football pitch. Wikipedia]
The diagram example "Association football (soccer) field dimensions" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Football solution from the Sport area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ sport-soccer

"The neutral zone trap (often referred to as simply the trap) is a defensive strategy used in ice hockey to prevent an opposing team from proceeding through the neutral zone (the area between the blue lines) to force turnovers. The strategy is generally used to level the playing field for teams that are not as offensively talented as their opponents, although the trap can also be used by teams simply looking to protect a lead late in the game. The trap was innovated by the Toronto Maple Leafs in the 1920s and 1930s, and more recently in the mid to late 1990s and early 2000s by the New Jersey Devils." [Neutral zone trap. Wikipedia]
The diagram example "Ice hockey - Defensive strategy - Neutral zone trap" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Hockey solution from the Sport area of ConceptDraw Solution Park.