Hawthorn are hopeful Conor Nash will be back for the start of pre-season despite the Irish forward being locked out of Australia temporarily after unwittingly overstaying the tenure of his working visa.

Nash, 21, arrived at the airport ahead of an end-of-season holiday to Europe with teammates late last month only to be told by immigration officials that he had to leave the country immediately because his visa had expired due to an administrative oversight.

Conor Nash takes down West Coast's Andrew Gaff in round 23. Credit:AAP

He was able to enjoy a sojourn with teammates including Tim O'Brien, Harry Morrison, Conor Glass, James Cousins and Marc Pittonet, sharing a happy snap on Instagram from the Greek Island of Mykonos on September 24.

However whereas those other Hawks were able to return for Saturday night's Peter Crimmins Medal count at Crown Palladium, Nash remains barred from legally entering Australia.