Boateng spoke to Sky Italia's Fabrizio Romano on Monday:
Fabrizio Romano @FabrizioRomano
Kevin Prince Boateng exclusive with @SkySport: “Barça, I’m coming! I’m sad to leave Sassuolo but is a great chance. Don’t ask me about Real Madrid... is just the past! I only want to focus on Barcelona and I hope to score at Bernabéu for the next Clásico” 🔥 #Boateng #Barça #FCB https://t.co/08nw1EFQo1
Barcelona also confirmed the transfer with an announcement video on Twitter:
The 31-year-old's switch to the Camp Nou comes as a major surprise, with speculation ramping up early on Monday. AS' Robbie Dunne couldn't quite believe it:
Boateng has played for a variety of clubs during his career, including Tottenham Hotspur, Borussia Dortmund, AC Milan and Schalke 04. In fact, he's one of the most well-travelled active players today:
Formerly an all-action midfielder, he has rediscovered his best form with Sassuolo as an attacker. He has scored four goals in Serie A this season while playing as a false-nine.
The former Ghana international has La Liga experience with Las Palmas and played some of his best football on the Iberian peninsula:
Barcelona have limited attacking depth, and Boateng's versatility makes him a solid addition. He can fill in all over the attacking three, as a central striker or winger, and could shift back to a midfield role if necessary.
His arrival should clear an exit route for Denis Suarez, who has been linked with a move to Arsenal throughout the January window. As reported by the Mirror's Jacob Murtagh, Gunners manager Unai Emery confirmed the club were looking at him earlier this month.
Boateng previously said he could have played for Real Madrid in an interview with Rheinische Post (h/t Bundesliga.com). He also took to social media following Real Madrid's 3-1 win at the Camp Nou in August of 2017, trolling Barcelona fans over Neymar's transfer to Paris Saint-Germain shortly before:
He's no doubt hoping Barcelona fans agree those comments are in the past and they welcome him when he arrives in Catalonia.