Aberdeen are set to sign the big Australian keeper Nick Suman on freedom of contract from Cove Rangers. Suman will become the second Australian arrival at Aberdeen this season, as they have already agreed a deal to sign winger Nicolas Milanovic from Western Sydney Wanderers. The 25-year-old has impressed during his two years in Scotland under Paul Hartley at Cove and is expected to compete with Dimitar Mitov for the No. 1 spot. Suman, who initially came to Scotland on trial at Rangers under Steven Gerrard, also has A-League experience with Western Sydney and Macarthur.