Tag team wrestling is a type of professional wrestling in which matches are contested between teams of multiple wrestlers. A tag team may be made up of wrestlers who normally wrestle in singles competition, but more commonly are made of established teams who wrestle regularly as a unit and have a team name and identity.
In most team matches, only one competitor per team is allowed in the ring at a time. This status as the active or legal wrestler may be transferred by physical contact, most commonly a palm-to-palm tag which resembles a high five.
The team-based match has been a mainstay of professional wrestling since the mid-twentieth century, and most promotions have sanctioned a championship division for tag teams.