It is possible that Nyatanga could still play for the Wales Under 21 side in their match against Bosnia at Wrexham on 10th October and then join up with the senior squad for the Liechtenstein game thereafter.
Full Wales squad:
Goalkeepers: Hennessey (Wolves), Myhill (Hull), Price (Brentford, on loan from Derby).
Defenders: Bale (Tottenham), J Collins (Aston Villa), Eardley (Blackpool), Gabbidon (West Ham), Gunter (Nottingham Forest), Morgan (Peterborough), Nyatanga (Bristol City), Ricketts (Bolton), A Williams (Swansea).
Midfielders: Ledley (Cardiff), Cotterill (Sheffield United), Edwards (Wolves), Ramsey (Arsenal), Vaughan (Blackpool).
Strikers: Bellamy (Manchester City), Church (Reading), C Evans (Sheffield United), Earnshaw (Nottingham Forest), Vokes (Wolves).