Huddersfield Town suffered a 1-0 defeat by West Bromwich Albion in their opening Under 23 Premier League Cup group game.
Kane Wilson scored a 22nd-minute winner for the Baggies in the tie at Curzon Ashton, which Town are using for their home games in this competition.
Town are back in action on Tuesday, when they visit Crystal Palace in the Professional Development League (1.00).
Frankie Bunn’s side lost attacking midfielder Lewis O’Brien to a first-half injury.
It was the first of six group games for Town.
Team: Coddington, Hanson, O’Hanlon, Tear (Scott, 75mins), Kane, Cogill. O’Brien (Carvalho, 38), Booty, Dyson, Pyke, Warde.
Subs not used: Marriott, Clibbens, Dorrington.
Town Under 18s are in Professional Development League action against Sheffield Wednesday at PPG Canalside on Saturday (11.00).
