Ireland U21 squad vs Israel
Henderson (Aston Villa), Deeney (Notts County), Foley (Luton Town), Kelly (Tottenham Hotspur), Fitzgerald (Bury), Kohlmann (Borussia Dortmund), Paisley (Longford Town), Flood (Manchester City), McStay (Leeds United), Whelan (Sheffield Wednesday), Potter (Liverpool), O'Brien (Bolton Wanderers), Thornton (Sunderland), Bell (Rushden and Diamonds), McGeady (Celtic), Tabb (Brentford), Murphy (Waterford United), Quigley (Millwall).
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Every one of those players have tasted 1st team football for their club (actually not sure about McStay). I wasn't sure if Kohlmann had either but he started against Kaiserklautern in November.
Looks like Elliott will be in the main squad.