Speaking about Gabriel last season, United manager Carrick said: "He's not allowed [to make his debut], he's too young. He's doing really well, JJ. We've got some really good young players in the academy and we try and get the younger players up [with the first-team] as much as we can. We're always trying to give that exposure to the players to come and train and feel it."
The United boss added: "JJ is a big talent, it's pretty obvious to know that and he's had a really good season for the U18s. We obviously think an awful lot of him, but patience is important in managing everything that comes with that and working with him in development as we do with all the different younger players and picking the right moment to step up.