Violence in sports usually refers to violent and often unnecessarily harmful intentional physical acts committed during, or motivated by, a sports game, often in relation to contact sports such as American football, ice hockey, rugby football, lacrosse, association football, boxing, mixed martial arts, wrestling, and water polo and, when referring to the players themselves, often involving excessively violent or potentially illegal physical contact beyond the normal levels of contact expected while playing the sport. These acts of violence can include intentional attempts to injure a player or coach by another player or coach, but can also include threats of physical harm or actual physical harm sustained by players or coaches by fans or those engaging in the spectating of sports, or threa