Keiren Westwood has not played since being injured on 26 August
Sheffield Wednesday goalkeeper Keiren Westwood's rib injury has ruled him out of the Republic of Ireland's World Cup qualifiers against Georgia and Serbia.
The 32-year-old has not played since being hurt in a Championship match against Burton Albion in August.
With striker Kevin Doyle having retired because of concussion-related symptoms, the Republic squad has been cut to 30.
James McClean and Robbie Brady are suspended for the home game against Moldova on 6 October.
Two days later Martin O'Neill's squad will travel to Cardiff for the final Group D match against Wales on 9 October.
Martin O'Neill named his initial squad on 26 September, including the uncapped Aston Villa striker Scott Hogan.
English-born Hogan, 25, who had been linked with the Republic for some time, was summoned to fill the gap left by the absence of Burnley forward Jonathan Walters who has a knee injury.
Millwall forward Aiden O'Brien also receives a first senior international call-up.
James McCarthy, Wes Hoolahan, Harry Arter and Keiren Westwood were included despite being injury concerns.
Walters' Burnley team-mate Jeff Hendrick returns after missing the games against Georgia and Serbia earlier this month because of a thigh injury.
The defeat by the Serbs dropped the Irish to third place in Group D and they will need to beat Moldova and earn an away win over Wales to keep alive any hope of qualification.
Republic of Ireland squad
Goalkeepers: Randolph (Middlesbrough), Elliot (Newcastle), Doyle (Bradford)
Defenders: Christie (Middlesbrough), Keogh (Derby), Duffy (Brighton), Clark (Newcastle), O'Shea (Sunderland), Long (Burnley), Ward (Burnley)
Midfielders: McGeady (Sunderland), McClean (West Brom - suspended for Moldova game), Whelan (Aston Villa), Hourihane (Aston Villa), Hendrick (Burnley), Brady (Burnley - suspended for Moldova game), McCarthy (Everton), Meyler (Hull), Arter (Bournemouth), O'Kane (Leeds), Hoolahan (Norwich), Hayes (Celtic), O'Dowda (Bristol City), Horgan (Preston)
Strikers: Long (Southampton), Murphy (Nottingham Forest), McGoldrick (Ipswich), Maguire (Preston), Hogan (Aston Villa), O'Brien (Millwall).
Source: bbc.com