Mahney played in all three of Port Adelaide’s premierships they won consecutively in 1988, 89, 90. Kicking a goal in the 1990 decider v Glenelg, before succumbing to a hamstring injury. He was also a part of the 1989 Foundation Cup winning team which was the SANFL’s pre season competition. [2]
In 1986 he was selected by Footscray with pick 32 of the VFL Draft, however chose to remain in South Australia playing for Port Adelaide rather than heading to Victoria. [3]
His father Graham Mahney was a member of Port Adelaide’s 1959 Premiership side.[4]