He spent three solid years in the minors with the Dallas Black Hawks but never saw an NHL game in Chicago.
Rizzuto spent most of the 1970–71 season on the Canucks' roster as a utility player, recording 3 goals and 4 assists for 7 points in 37 games.
For the 1972–73 season, Rizzuto signed on with the Winnipeg Jets of the rival upstart World Hockey Association.
He was his best professional season, recording 10 goals and 20 points, helping a team led by Bobby Hull to the Avco Cup finals.
He retired after a brief stint as a player-coach of the Nelson Maple Leafs of the Western International Hockey League at the start of the 1974-75 season.