Career
A tall full forward, Moncrieff was a prolific goalkicker for Hawthorn and topped their goalkicking on five occasions. The two times that he kicked 90 or more goals in a season came in premiership years for Hawthorn, 1976 and 1978. In 1976 he managed a career high 97 goals.
He returned full forward in 1978 and in the 1978 Grand Final he kicked four goals.
He represented Victoria on three occasions. He kicked 10 goals in a match three times and holds the joint Hawthorn record for most goals in a final, kicking eight in the 1978 Qualifying Final against Collingwood.
Prior to the 1984 season, Moncrieff joined Street Kilda. As was permitted by the rules, Moncrieff trained and played practice matches with Street Kilda during the pre-season while Street Kilda and Hawthorn continued to negotiate his clearance and transfer fee.
But negotiations broke down and a transfer fee became nearly impossible to assess when Moncrieff suffered a serious knee injury in a practice match, which saw him miss fifteen months of football and ultimately retire from the VFL without playing a match for Street Kilda.
Following this case, the rules were amended to require a player"s clearance to be finalized before he could train with his new club In 1986, Moncrieff played for Sandringham in the Victorian Football Association.