Michael Murphy, Neil McGee and Patrick McBrearty have all declared themselves available for the International Rules Series in Australia.
The Donegal trio will attend training on Friday night, as manager Paul Earley attempts to get his squad selected and settled as quickly as possible.
Murphy captained the Irish side to a record victory in the last series in Ireland last year and is in contention to be skipper again Down Under.
Last year, Murphy was caught up in a Club V Country row, the first test was played in Breffini park, Cavan less than 24 hours before Murphy played for Glenswilly in the Donegal SFC final.
Murphy helped Ireland to a comprehensive win over the Aussies before he helped Glenswilly to only their second ever Donegal SFC title.
In the aftermath of last year’s series it was questioned whether or not the compromised rules tests between Ireland and Australia should continue.
Australia performed terribly and were trounced on both occasions, plus stories emerged that many in the squad were partying before each test and were treating the trip as a holiday rather than a serious competition.
However, the Irish players pleaded with GAA chiefs not to scrap it, saying that representing your country was one of the greatest honours a GAA player could have.
The Irish squad will head Down Under in November hoping to retain the trophy they won so comfortably on home soil last year.
In the meantime they will hold training sessions and trial games over the next number of weeks, before manager Paul Earley selects his Ireland squad for the series.