Born in Humboldt, Saskatchewan, Leswick played junior in Saskatoon with the Dodgers and Quakers. In 1942-43, he scored 40 points in 52 games as a rookie pro with the AHL's Cleveland Barons. He also toiled with the PCHL's New Westminster Royals and the Winnipeg Navy before scoring 15 goals as a rookie with the New York Rangers in 1945-46.

Leswick spent six years with the Blueshirts and recorded consecutive 20-goal seasons in 1947 and 1948. After scoring 44 points in 1949-50, he was named to the NHL second all-star team. During this time, he formed a successful combination with Edgar Laprade and Dunc Fisher. In June 1951, "Mighty Mouse" was sent to the Detroit Red Wings for Gaye Stewart.

Leswick was a solid addition to the powerful Red Wings and was inserted on a line with Marty Pavelich and Glen Skov. His skill and savvy helped the Wings win the Stanley Cup in 1952, 1954, and 1955. The clever winger played a season with the Chicago Black Hawks before rejoining Detroit for 22 games in 1957-58. He retired after playing nine games for the WHL's Vancouver Canucks in 1959-60.

Courtesy of the Hockey Hall of Fame