Robert Bryant Plager (March 11, 1943 – March 24, 2021) was a Canadian professional ice hockey defenceman who played in the National Hockey League (NHL) for 14 seasons from 1964 until 1978, primarily for the St. Louis Blues. Plager spent over half a century with the Blues organization in various capacities. Early career Plager was born in Kirkland Lake, Ontario, on March 11, 1943. His father, Gus, worked as the chief official in the Northern Ontario Hockey Association. Plager played junior hockey with the Guelph Biltmore Mad Hatters and the Guelph Royals. Known for his aggressive, highly physical play, he broke what was then the Ontario Hockey Association record for penalty minutes in a season in 1961–62. He subsequently signed a professional contract with the New York Rangers in 1964, but only played 29 games with this club over the next three years, spending most of his time with the minor league Baltimore Clippers. The NHL's expansion gave Plager his chance to become an NHL regular; he was traded to St. Louis with Gary Sabourin, Tim Ecclestone, and Gord Kannegiesser for Rod Seiling on June 6, 1967. Blues playing career Plager was reunited with his brothers Bill and Barclay as all three took the ice for St. Louis Blues as the team started its existence with a hard-hitting, defensive-oriented squad that appeared in three straight Stanley Cup Finals. Bob Plager earned a reputation as a bruising player with a devastating hip check. Off the ice, he was known as a prankster who was able to bond teammates through his lighthearted demeanor. Despite injuries, Plager was able to play 615 games over 11 years on the St. Louis blue line. Post-playing career Plager retired from on-ice action in 1978 and took a job with the Blues front office. He is credited with developing the process of advanced scouting. During the 1990–91 season, he took over as head coach of the Peoria Rivermen, a Blues affiliate club. In his one season behind the bench, he led the team to a Turner Cup championship and won the Commissioners' Trophy as coach of the year. During the 1992–93 season, he became the Blues' head coach, but, unhappy with his new role, he resigned after 11 games to return to his job as vice president of player development. His jersey was retired on February 2, 2017, the seventh for a Blues player. He was either