Celtic defender Liam Scales has been called up to the Republic of Ireland squad for the upcoming games against Azerbaijan and Qatar.
The 23-year old former Shamrock Rovers defender replaces Swansea City defender Ryan Manning, who was forced to withdraw due to injury.
Scales linked up with Stephen Kenny's squad before they departed to Baku on Wednesday and has played under the Republic of Ireland boss at under-21 level.
The former Arklow Town FC man joined Celtic from Shamrock Rovers in August and made his debut for the Scottish Premiership side in a League Cup win over Raith Rovers last month.
The Boys in Green are yet to win a game in Group A of the World Cup qualifiers and drew 1-1 with Azerbaijan in Dublin in September.
Republic of Ireland Squad v Azerbaijan / v Qatar
Goalkeepers: Gavin Bazunu (Portsmouth, on loan from Manchester City), Caoimhin Kelleher (Liverpool), Mark Travers (AFC Bournemouth).
Defenders: Matt Doherty (Tottenham Hotspur), Cyrus Christie (Fulham), Shane Duffy (Brighton and Hove Albion), John Egan (Sheffield United), Enda Stevens (Sheffield United), James McClean (Wigan Athletic), Andrew Omobamidele (Norwich City), Nathan Collins (Burnley), Liam Scales (Celtic).
Midfielders: Josh Cullen (Anderlecht), Jeff Hendrick (Newcastle United), Conor Hourihane (Aston Villa), Harry Arter (Nottingham Forest), Jamie McGrath (St. Mirren), Jason Knight (Derby County).
Attackers: Callum Robinson (West Bromwich Albion), Aaron Connolly (Brighton and Hove Albion), James Collins (Cardiff City), Daryl Horgan (Wycombe Wanderers), Adam Idah (Norwich City), Troy Parrott (MK Dons, on loan from Tottenham Hotspur), Will Keane (Wigan Athletic), Chiedozie Ogbene (Rotherham United).