The 18-year old winger has signed a five-year deal with the Reds after forcing his way into Brendan Rodgers' first team this season and was over the moon after committing himself to the Anfield cause.
"It's every 18-year-old's dream. I'm just really grateful to be at such a big club like this," he told Liverpool's official website.
"There's a lot more to be done. I haven't begun yet, as the manager has said. Hopefully I can kick on after the New Year and try to do my best for the team and the football club."