Cardiff City midfielder Harry Arter is a surprise from the Ireland squad to face Wales.
Arter was originally named in Ireland's provisional squad for the inaugural UEFA Nations League game against Wales, but has been not been named in the final squad amid media reports of a bust-up with assistant manager Roy Keane.
The game is set to take place in Cardiff City Stadium on September 6.
Harry Arter has played a major role in Cardiff's opening four games of the new Premier League season, and would have been expected to start in Ireland's upcoming clash.
Arter, who has been capped for Ireland 13 times, will also not be eligible to play against Poland in a friendly on September 11.
The FAI published the squad in full this morning.
Goalkeepers: Colin Doyle (Hearts), Sean McDermott (Kristiansund BK), Darren Randolph (Middlesbrough)
Defenders: Seamus Coleman (Everton), Cyrus Christie (Fulham), Matt Doherty (Wolverhampton Wanderers), Shane Duffy (Brighton & Hove Albion), Richard Keogh (Derby County), Ciaran Clark (Newcastle United), Kevin Long, Stephen Ward (Burnley), John Egan, Enda Stevens (Sheffield United)
Midfielders: Alan Judge (Brentford), Jeff Hendrick (Burnley), Conor Hourihane (Aston Villa), Alan Browne (Preston North End), Shaun Williams (Millwall), David Meyler (Reading), Daryl Horgan (Hibernian), Callum O'Dowda (Bristol City), James McClean (Stoke City)
Forwards: Jonathan Walters (Ipswich Town*), Graham Burke, Callum Robinson (Preston North End), Aiden O'Brien (Millwall).
