The Wolfhounds squad will be announced tomorrow with the team confirmed later in the week.
It was also announced that Performance Psychologist Enda McNulty has joined the management team for the duration of the RBS 6 Nations.
McNulty, an All Ireland winner with Armagh in 2002, has previously worked with Leinster.
IRELAND Training Squad Additional Players:
James Coughlan (Munster)
Tommy O'Donnell (Munster)
Rhys Ruddock (Leinster)
Kevin McLaughlin (Leinster)
Mike Sherry (Munster)
Damien Varley (Munster)
Ian Keatley (Munster)
Ulster's Roger Wilson was considered but has been ruled out with a hamstring injury, while Leinster's Richardt Strauss, who made his Ireland debut last November, has been ruled out with an ankle ligament injury.