Liverpool have signed Thiago Alcantara from Bayern Munich in a deal that could rise to £25m.
Liverpool will pay £20m for the Spain international, with the potential for a further £5m in add-ons, and the midfielder will wear the No 6 jersey.
Thiago arrived in the UK on Friday morning, flying in to Manchester from Munich to complete a medical and finalise the deal.
The 29-year-old helped Bayern win the treble last season, as they beat Paris Saint-Germain in the Champions League final last month in Lisbon.
On leaving the Bundesliga giants, Thiago took to social media to post a goodbye video which said: “I have made the most difficult decision of my sports career.
“I will close this chapter in this wonderful football club where I have grown as a player for seven years.
“Triumphs, joys and also hard times but what I am most proud of is that I arrived in Munich as a young man full of dreams and now I will leave completely fulfilled with the club, a history and a culture.
“Here I learned to love a tradition that I am now saying goodbye to but which I will never forget.
“My decision is purely a sporting nature as a soccer player, I want new challenges to develop myself further. Bavaria will always be my home, thank you FC Bayern.”
Bayern boss Hansi Flick paid tribute to Thiago on Thursday, saying: “Thiago is an exceptional player who spent seven hugely successful years here.
“He’s a wonderful person and an outstanding professional. It was very emotional today when he said goodbye to us all.”
Thiago started his career at Barcelona and was handed his debut for the Catalan side by Pep Guardiola in 2009 at the age of 18.
He was an unused substitute as Barca beat Manchester United in the Champions League final the following season.
Thiago joined up with Guardiola again in 2013 when the then-Bayern boss took him to Bavaria. He went on to win seven Bundesliga titles and four DFB-Pokal cups.