Nicknamed Junior because he shared his father's given name, Langlois also played for the New York Rangers, Detroit Red Wings and finally the Boston Bruins, earning the distinction of being the last Bruins player to wear sweater No. 4 before it would be given to and eventually immortalized by Bobby Orr. Langlois played 498 NHL games between 1957-58 and 1965-66, a dependable stay-at-home defenseman who scored 21 goals with 98 assists during his career. He won championships with Montreal in 1958, 1959 and 1960, the last three in the Canadiens historic run of five straight.
Junior was part of a major day of Canadiens trading with the Rangers in 1961, dealt on June 13 that year for John Hanna. That same day, Doug Harvey, then the Canadiens captain and often his blue-line partner, was traded to New York for Lou Fontinato.
