Didz, Murph and Christophe in line for friendly action
The Town striker was an unused substitute, along with fellow Blue Daryl Murphy, for the Republic’s 1-0 defeat against Scotland in their 2016 European Championship qualifier on Friday.
Also on the bench at Celtic Park was Christophe Berra, who remains in the Scotland squad for their friendly against England tomorrow night.
The Irish take on the USA at the Aviva Stadium, Dublin.