Cain is among the new crop of talents to have been called into first-team training under Jurgen Klopp on a regular basis towards the end of the season.
“What we want is to create our transfers internally,” the manager explained at the end of June.
The club confirmed on Friday morning that the midfielder has signed a new long-term contract, having only agreed his first professional deal back in September.
And though this is no guarantee of a first-team role for Cain, it is a marker of his progress over the course of the season and, seemingly, Klopp’s faith in his ability.
No player made more appearances for the academy this season than Cain (32), who ranked third in terms of goals scored (eight) and created (11); only Jones (27) and Layton Stewart (23) contributed more combined.
He played the full 90 minutes in the 1-0 win over Shrewsbury in the FA Cup in February, with This Is Anfield’s James Nalton praising him for “keeping things simple and ticking over as part of the midfield group which dominated possession.”
It is unlikely this contract will be the last Liverpool announce this summer, with Williams likely to be the next in line, while Clarkson could be rewarded too.
This is an indication of the quality coming through the academy, with Klopp keen to draw upon his youth ranks to flesh out his senior squad.