Full back Gareth Bale is dueto just play 45 mins giving a possible opening for Gunter to get a game.
John Toshack was Gunter from the Directors Box when City played Brighton last week.
Wales squad for the friendly against Bulgaria on 22nd August:
Coyne (Tranmere), Hennessey (Wolves), Price (Derby), Bale (Tottenham), D Collins (Sunderland), Gunter (Cardiff), Evans (Wrexham), Gabbidon (West Ham), Morgan (Peterborough), Nyatanga (Derby), Ricketts (Hull), Eardley (Oldham), Crofts (Gillingham), S Davies (Fulham), M Jones (Wrexham), Ledley (Cardiff), Vaughan (Crewe), Bellamy (West Ham), Earnshaw (Derby), Eastwood (Wolves), Nardiello (QPR).