Jersey boss Martin Cassidy says he is "really proud" of his side despite their 3-0 friendly defeat by Leicester Under-23s at Springfield on Wednesday.
Hamza Choudhury, who has played 13 Championship games for Burton this season, got the opener from the spot.
Spanish striker Raul Uche and Romanian Alex Pascanu scored the other goals for City.
"Some of our football was really good and really brave, especially through the middle of the park," Cassidy said.
"I'm so proud of the performance and attitude - they gave it everything, and if we keep giving them games like that we'll keep getting attitudes like that.