The Republic of Ireland team has been enhanced by the return to training of two key players.
Key defender John O'Shea and star striker Shane Long trained with Martin O'Neill's squad on Sunday head of the Euro2016 play-off clash with Bosnia and Herzegovina in Dublin on Monday.
Sunderland's O'Shea and Southampton's Long missed Saturday's first leg 1-1 draw in Zenica due to injury and suspension but could both return for the crunch meeting at the Aviva Stadium after getting through the final warm-up session.