Alexander, who was originally from Thornbury, played as a ruckman at Preston and represented the Victorian Football Association in the 1966 Hobart Carnival. He came to Collingwood in 1967, who were coming off a one-point Grand Final loss the previous season. Coach Bob Rose played Alexander in the forward pocket when he wasn't doing ruck-work. His last game for Collingwood was the Magpies' 1969 preliminary final loss to Richmond.[citation needed]
Western Australia 26.18 (174) defeated Victoria (VFA) 5.11 (41), at North Hobart Oval, 9 June 1966, crowd: 20,047 Tasmania 19.27 (141) defeated Victoria (VFA) 7.11 (53), at North Hobart Oval, 11 June 1966, crowd: 23,764 Victoria (VFL) 14.17 (101) defeated Victoria (VFA) 9.7 (61), at North Hobart Oval, 13 June 1966, crowd: 13,969 South Australia 21.20 (146) defeated Victoria (VFA) 9.11 (65), at North Hobart Oval, 16 June 1966, crowd: 10,199