Sepp van den Berg will have the chance to make his case for a spot in the Liverpool first-team.
The teenage centre-back is Liverpool's only signing so far this summer.
The Dutchman was originally allocated to the academy, but manager Jurgen Klopp says he will "open the door" for the club's youngsters in preseason.
He said: "It depends. I open the door but the boys have to go through still. He is a wonderful player as well, but because of FIFA rules he is not available in the moment, but we have other good players.
"He thought his future should be here and I thought the same, so now he is here and now let's work together.
"He is 17 years old and when you see him you forget that constantly, but he is 17 and so there is a lot to learn. The good thing is he has the most time to do so, so everything will be fine."
