Uncapped West Brom defender Dara O'Shea has been added to the Republic of Ireland squad ahead of Thursday's Nations League clash in Bulgaria while Troy Parrott has withdrawn due to injury.
O'Shea, who captained the U21s under now senior manager Stephen Kenny, helped the Baggies secure promotion to the Premier League this year.
"Dara has come through the ranks, from under 15 right through," said Kenny.
"He showed himself capable of playing in all four (defensive) positions with West Brom last year, he is a centre-half really but has played right-back, left-back.
"With one or two additional injuries, strains and so forth, we've given ourselves that additional cover with Dara coming in.
"His ability to play the four positions is an asset."
Kenny also revealed that Parrott was injured in Milwall's 3-0 friendly win over Southend United, in which the on-loan striker scored his second goal in two pre-season appearances.
Parrott returned to his club following a scan on Sunday afternoon, with Preston striker Maguire replacing him.
Kenny added that James McCarthy picked up a knock playing for Crystal Palace in midweek and would also be assessed in Dublin.
"I know James is very keen to come back and play for Ireland, it's been a few years now since he has played.
"He’ll be a huge addition to us."