International Rules manager Sean Boylan has several injury concerns ahead of Friday's second test with Australia in Melbourne.
Ireland go into the second test with the slenderest of leads after winning the first game 45-44, but could be without four players.
Leighton Glynn, Aidan O'Mahony and Kevin Reilly are all nursing heavy colds and were forced to sit out training with the rest of the squad today.
Elsewhere, Benny Coulter is carrying a back injury and may be subjected to a late fitness test.
