Weideman is probably best remembered today as Collingwood's 'enforcer' of the late 1950s and early 1960s, loved by the club's supporters, and loathed by those of the opposition. He made his senior VFL debut in 1953, and was on the bench for that year's Grand Final, in which Collingwood defeated Geelong. When regular Collingwood skipper Frank Tuck was injured and unavailable for the 1958 VFL Grand Final against Melbourne, Weideman became Collingwood's acting skipper, and kicked two goals. The wet weather that day made the ball slippery and produced congested packs of players, which suited Weideman with his physical strength more than it did players who relied on speed and nimbleness. Despite this, Weideman's opponent, the Melbourne centre-halfback Don Williams, was among Melbourne's best players —"though outmatched by Weideman in the last quarter", according to Tony Charlton's commentary in the of the final quarter.
Awards
Weideman was much more than just the football equivalent of a hit man. He won the Copeland Trophy for Collingwood's best and fairest player in 1957, 1961 and 1962, and was usually among the Magpies' best players in important games. He retired in 1963 and was selected as centre half forward in Collingwood's official 'Team of the Twentieth Century'.
Coaching career
Murray Wiedeman coached West Adelaide in the South Australian National Football League from 1968 to 1971, taking West Adelaide to the Preliminary Final in 1969. Weideman made a brief return to his old club Collingwood in 1975 as coach. After a solid debut season which spawned an 11–9 record and fifth place on the ladder, things quickly went bad in 1976 as the club plummeted to its first wooden spoon. Weideman was quickly replaced by former multiple time Richmond premiership coach Tom Hafey for the 1977 VFL season.
Wrestling
Weideman's reputation as a football 'hard man' was utilised by the Australian professional wrestling promotion of the day, International Wrestling. While recovering from a shoulder injury sustained during 1962 season, Weideman was induced to enter the wrestling ring in a bid to draw publicity to the ailing promotion. He was paired with Italian-American veteran Salvatore Savoldi as his tag team partner, and generally put over by his opponents. While briefly serving its purpose in attracting publicity, it ultimately resulted in little benefit to either Weideman or International Wrestling.
