Liverpool have completed the signing of 18-year-old Scottish right-back Calvin Ramsay from Aberdeen to a five-year deal for an initial £4.2 million.
The deal for the Scotland Under-21 player also includes £2.5m in potential add-ons and a 17.5% resale clause.
There are no plans to loan Ramsay and he will join Jurgen Klopp’s first team for the season.
“I’m just buzzing and it’s a dream come true to really be here,” said the defender.
“It was a dream come true to play for Aberdeen, and to now be at one of the biggest, if not the biggest club in the world, it’s a huge achievement and I’m looking forward to showing the fans what I have.”
Ramsay made 33 appearances for Aberdeen last season, scoring once and providing nine assists.
He played a total of 39 games for the Scottish Premiership side after rising through the youth ranks.
The fullback was named Young Player of the Year by the Scottish Football Writers’ Association in April after an impressive breakout campaign that saw him coming into contact with many European clubs.
Ramsay said the development of young players such as Trent Alexander-Arnold and Harvey Elliott was one of the reasons he joined the Reds.
“Obviously there’s a path here,” he said.
“That’s one of the reasons I chose it. It’s not just a huge club, they give young players opportunities in the first team.”
“So if I can come in pre-season, make my mark, there’s no reason why I can’t push to get into the first team.”
He is Liverpool’s third signing this summer, following Benfica’s £64m Uruguayan striker Darwin Nunez and Fulham’s £5m striker Fabio Carvalho.
Liverpool won the Carabao Cup and FA Cup last season, but came second in the Premier League and lost the Champions League final to Real Madrid.
Analysis – BBC Scotland, Thomas Duncan
Ramsay is a player who passes the scouts’ mythical ‘eye test’. A modern attacking fullback, he looks comfortable on the ball, is strong with both feet and his dribbling ability attracts mistakes.
A few months ago, Aberdeen posted a clip of Ramsay scoring from 30 yards with his weaker left foot while playing for youth, and another of him as a 13-year-old performing a range of skills in his yard.
His only first-team goal — against Dundee in April — was in a similar vein when he cut infield on his left foot and struck in a 20-yard strike.
He contributed four league assists to a struggling Aberdeen team last season – just four non-Old Firm players produced more – creating an average of 1.58 chances per 90 minutes.
Despite all the positives, there’s plenty to work on, as you’d expect from an 18-year-old.
Defending crosses to the back post is a vulnerability and while not minor, he is still developing physically.
He doesn’t have the same charisma as fellow Scottish right-back Nathan Patterson, who moved to Everton in January and is two years his senior.