Tottenham Hotspur youngster Troy Parrott has been given his first call-up by Mick McCarthy for next month's Euro 2020 qualifier against Switzerland.
The 17-year-old Spurs wonderkid has been named in Mick McCarthy's 40-man provisional panel for the big qualifier, which is followed by a friendly against Bulgaria.
Speaking to FAI TV about why the squad was so large, the Ireland boss said: "I dont know what's going to happen between now and the next couple of games.
"We've got Saturday games, Tuesday games, Saturday and then the Saturday before me meet up. Players could get injured before we meet up."
There are additional first call-ups for Stoke City's Nathan Collins and Doncaster Rovers midfielder Kieran Sadlier.
Crystal Palace midfielder James McCarthy was also given his first call-up under the new manager and could be given a first cap since October 2016.
Shamrock Rovers' Jack Byrne has also been called up after his key performances during the League of Ireland side's European run.
The full squad is as follows:
Goalkeepers: Darren Randolph (Middlesbrough), Keiren Westwood (Sheffield Wednesday), Mark Travers (AFC Bournemouth), Kieran O'Hara (Burton Albion, on loan from Manchester United)
Defenders: Seamus Coleman (Everton), Matt Doherty (Wolverhampton Wanderers), Shane Duffy (Brighton and Hove Albion), Richard Keogh (Derby County), John Egan (Sheffield United), Kevin Long (Burnley), Nathan Collins (Stoke City), Enda Stevens (Sheffield United), Greg Cunningham (Blackburn Rovers, on loan from Cardiff City), Cyrus Christie (Fulham), Darragh Lenihan (Blackburn Rovers), Derrick Williams (Blackburn Rovers). Ciaran Clark (Newcastle United)
Midfielders: Conor Hourihane (Aston Villa), Glenn Whelan (Heart of Midlothian), Josh Cullen (Charlton Athletic, on loan from West Ham United), Jeff Hendrick (Burnley), Robbie Brady (Burnley), Alan Browne (Preston North End), James McClean (Stoke City), Callum O'Dowda (Bristol City), James McCarthy (Crystal Palace), Jack Byrne (Shamrock Rovers), Alan Judge (Ipswich Town), Harry Arter (Fulham, on loan from AFC Bournemouth), Ronan Curtis (Portsmouth), Kieran Sadlier (Doncaster Rovers)
Forwards: Callum Robinson (Sheffield United), Scott Hogan (Stoke City, on loan from Aston Villa), Shane Long (Southampton), Michael Obafemi (Southampton), David McGoldrick (Sheffield United), James Collins (Luton Town), Aiden O'Brien (Millwall), Troy Parrott (Tottenham Hotspur), Sean Maguire (Preston North End)
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