From Citizendium, the Citizens' Compendium
- Sports : Activities that involve skill and physical exertion, and that are governed by a generally accepted set of rules and guidelines.
- Olympic Games : Quadrennial sporting extravaganzas involving athletes from around the world in both Summer and Winter sports competitions; begun in Athens in 1896.
- Grips : The manner with which the tennis player's hand holds the racquet during play.
- Tennis racquet : Add brief definition or description