Dominic, on loan from Reading, has impressed at the back for The Tudors recently with a few man-of-the-match performances.
Scotland Under-21 squad in full:
Goalkeepers: Jack Hamilton (Heart of Midlothian). Jonathan Henly (Reading)
Defenders: Stuart Findlay (Celtic), Marcus Fraser (Ross County), Dominic Hyam (Reading), Stephen Kingsley (Swansea City), Donald Love (Manchester United), Jordan McGhee (Heart of Midlothian), Callum Paterson (Heart of Midlothian)
Midfielders: Ryan Christie (Inverness Caledonian Thistle), Daniel Handling (Hibernian), Callum McFadzean (Sheffield United), John McGinn (St Mirren), Sam Nicholson (Heart of Midlothian), Charlie Telfer (Dundee United), Craig Slater (Kilmarnock)
Forwards: Jason Cummings (Hibernian), Ryan Fraser (Bournemouth), Ryan Gauld (Sporting Clube de Portugal), Declan McManus (Aberdeen), Lawrence Shankland (Aberdeen).