Christos Tzolis and Jaden Warner featured for the Under-21s in their fixture away to Brighton & Hove Albion, with the Under-18s hosting Charlton Athletic.
Alan Neilson's Under-21s were beaten by their Brighton hosts, falling to a 2-0 defeat at the American Express Elite Football Performance Centre.
Under-21s: Reyes, Riley, Wilson, Warner, Renecke, Manning, Brooke, Welch, Tzolis, Dickson-Peters, Forsyth. Subs: McIntosh, Eze, Coker, Reindorf, Watt, Craven.
The Under-18s were 6-2 winners at the Lotus Training Centre. Harrison Thompson opened the scoring from the penalty spot, before a trialist added a second.
Charlton would fight back to 2-2, before a second half brace from Alex Roberts and further goals from Elliot Myles and Pedro Amadou sealed the win.
Under-18s: Ansen, Simbai, Owen, Doy, Keita, Djedje, Bracking, Valencia Gomez, Thompson, Trialist, Sealey. Subs: Roberts, Myles, Amadou, Bullen, Ofori-Manteaw, Daley, Chilvers, Pinyoun, Williams.
Both sides return to action on Tuesday, August 1, as they play Ipswich Town. Please note, both games will be played behind closed doors.