The National Lacrosse League (NLL) is a men's professional box lacrosse league in North America. It currently has 9 teams with 5 in the United States and 4 in Canada. Unlike other lacrosse leagues which play in the summer, the NLL plays its games in the winter and spring. Each year, the playoff teams battle for the Champion's Cup. The NLL has averaged between 9,400 and 10,700 spectators per game each year since 2004.