Christopher John Nilan (born February 9, 1958) is an American former professional ice hockey player and former radio host. Nilan played 688 National Hockey League (NHL) regular season games as a right-wing for the Montreal Canadiens, Boston Bruins, and New York Rangers between 1980 and 1992. He won the Stanley Cup in 1986 with Montreal. Known as "Knuckles" or "Nuck", he was famous for his propensity to fight. He holds a record for most penalty minutes by an American-born player. Nilan's life and career are prominently featured in Alex Gibney's 2011 documentary film The Last Gladiators.