Unsportsmanlike conduct (also called untrustworthy behaviour or ungentlemanly fraudulent or bad sportsmanship or poor sportsmanship or anti fair-play) is a foul or offense in many sports that violates the sport's generally accepted rules of sportsmanship and participant conduct. Examples include verbal abuse or taunting of an opponent or a game official, an excessive celebration following a significant play, or feigning injury. The official rules of many sports include a general provision whereby participants or an entire team may be penalized or otherwise sanctioned for unsportsmanlike conduct.