Liverpool have completed a £35m deal to sign midfielder Alexis Mac Allister from Brighton on a five-year contract.
The fee could rise to £55m for the Argentina playmaker, who helped Brighton finish sixth in the Premier League this season to qualify for Europe for the first time.
The 24-year-old scored 20 goals in 112 appearances for the Seagulls and helped Argentina win the 2022 World Cup.
"It's a dream come true and I can't wait," said Mac Allister.
"I wanted to be in [from] the first day of pre-season, so it's good that everything is done.