Having turned 21 a few days ago, Alexander-Arnold already has has 97 Liverpool appearances to his name.
He has started in two consecutive Champions League finals, winning last season's, and the right-back wants to add to his trophy cabinet.
"Winning trophies," he said. "That's the main thing, wanting to leave legacy behind, wanting to feel as though you've had an impact on club and country and be remembered.
"That's the main aim, to win as many as possible, to go as far in tournaments as possible.
"I'd say I've matured as a player and a person, wanting to get better and improve, wanting to become a proper member of the team, playing a lot of games, picking up as many caps as possible and having an influence on the team. The experiences I've had have been incredible. I've learned so much."