Double (Sports)
The double is a game variant in some ball sports, in which two players compete against two other players. The most famous of these sports are kickbacks, which are played with bats. The world's best known sports, where the double is played, are tennis, table tennis, badminton and squash. A special form is the "mixed double", also called "Mixed", in which one woman and one man play for each team. The term mixed, however, also refers to mixed-sex teams of two or more athletes who are not referred to as doubles for various reasons. The game variant of the same sport, in which only one player plays against another player, is called single. The terms singles and doubles are generally used in kick-back sports in which exactly these two variants are played, that is, For example not in beach volleyball, in which the rule consists of two players. In sports without a ball, other terms are common to the variant with two jointly active athletes, Such as two, two-man, synchronizing, pairing.