Alexander-Arnold has established himself as a vital member of Jurgen Klopp's side this season with a string of impressive displays. The 19-year-old said he was spotted by Anfield scouts when his school was invited to send youngsters to a training camp.
He told Four Four Two: “There weren't enough invites for everyone in our class who wanted to go, so we drew names out of a hat.
"Fortunately, my name was pulled out.
"I went along, played with a smile on my face as I always did, and a scout went over to my mum at the end of the session and asked her to bring me to the academy two or three times a week.
“When the opportunity comes along, you've got to take it. Without knowing it, I did.
"Back then it was just another chance, on another day, to play football for a few days."