Watford boss Slaven Bilic is ready to continue giving opportunities to talented youngsters as they seek a return to the Premier League.
Yaser Asprilla and new signing Matheus Martins, both 19, and Jack Grieves, 18, were also sent on as substitutes.
"The way they responded was extraordinary," head coach Bilic said.
"It was not out of desperation, it was planned. I loved what I've seen in training and in the [FA Cup] game with Reading when a couple of these boys came on.
"They are brave and do what the manager is asking from them.