Liverpool signed Argentine World Cup winner Alexis Mac Allister from Brighton on Thursday for a fee that could rise to a reported £55 million ($69 million), reports AFP. The 24-year-old is the first piece in a midfield rebuild for Liverpool, who finished a disappointing fifth in the Premier League. “It feels amazing,” said Mac Allister, who is understood to have signed a five-year deal at Anfield. “It’s a dream come true. It’s amazing to be here and I can’t wait to get started.” Liverpool manager Jurgen Klopp is seeking to bolster his midfield options after the departures of James Milner, Naby Keita and Alex Oxlade-Chamberlain. The club were priced out of a move for England teenage star Jude Bellingham, who is set to join Real Madrid after the clubs agreed a fee of 103 million euros ($110 million). Klopp is excited about the arrival of Mac Allister, who reportedly cost an initial fee of £35 million. Mac Allister will wear the number 10 shirt worn with distinction by past Liverpool stars Sadio Mane, John Barnes and Michael Owen. Mac Allister, who made 112 appearances for Brighton, has played 16 times for Argentina, including in the World Cup final victory against France in December.