Muzzin scored his first NHL goal in his third game following the 2012–13 NHL lockout on January 26, 2013, against Jason LaBarbera of the Phoenix Coyotes. He went on to become a regular in the Kings' lineup and scored 7 goals and 9 assists in 45 regular season games, while adding 3 assists in 17 playoff games. He was also named NHL Rookie of the Month for March 2013.
