Rick Ley's journey in professional hockey began when he was drafted by the Toronto Maple Leafs in the 1966 NHL Amateur Draft. As a defenseman, Ley quickly established himself as a reliable player on the ice. He spent several seasons with the Maple Leafs, honing his skills and gaining valuable experience in the National Hockey League (NHL).

In 1972, Ley made a significant move to the World Hockey Association (WHA), joining the New England Whalers. This transition marked a new chapter in his career, as he became an integral part of the Whalers' defensive lineup. Ley's tenure with the Whalers was marked by consistent performances and leadership qualities, eventually earning him the role of team captain. Under his captaincy, the Whalers secured the Avco World Trophy in the league's inaugural season, a testament to the team's strength and cohesion.

Ley's career in the WHA was characterized by his steady presence on the blue line and his ability to guide younger players. He remained with the Whalers throughout the league's existence, becoming one of the most enduring figures in the team's history. When the WHA merged with the NHL in 1979, Ley continued to play for the Whalers, who were now part of the NHL, until his retirement as a player in 1981.

Following his playing career, Rick Ley transitioned into coaching, bringing his extensive knowledge of the game to various teams. He began as an assistant coach with the Hartford Whalers, the NHL continuation of his former team. Ley's coaching career spanned several teams and roles, including head coach positions with the Vancouver Canucks and the Toronto Maple Leafs. His coaching style was often described as disciplined and strategic, focusing on developing strong defensive play.

Throughout his coaching career, Ley was known for his ability to mentor young players and instill a sense of discipline and teamwork. His experience as a former player provided him with insights that he used to guide his teams effectively. Ley's coaching tenure in the NHL lasted until the mid-1990s, after which he continued to contribute to the sport in various capacities.

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