Italian international midfielder Jorginho, has joined Arsenal from Chelsea in a deal worth £12 million.
The 31-year-old was in the final six months of his deal with the Blues when he transferred from Napoli to Chelsea in 2018.
He signed an 18-month contract with a one-year extension option on Tuesday transfer deadline day, after passing a medical.
After Brighton rejected their two offers for Ecuadorian midfielder Moises Caicedo, the Gunners switched their attention to Jorginho.
Caicedo appears to be staying at the club beyond the 11 p.m. deadline, as Brighton stated he was not up for sale.
Jorginho joins Leandro Trossard and Jakub Kiwior as Arsenal’s third January signings. Leandro Trossard joined Arsenal from Brighton for £21 million, and Jakub Kiwior, a Polish defender, came from Spezia for 20 million euros.
Sporting Director Edu said: “Jorginho is an established professional with a strong mentality who brings quality and experience into our squad.
“He is a player who fits our style of play, and he joins us at a very good moment where he can contribute in a key position to help maintain our momentum. We welcome Jorginho to Arsenal.”
Manager Mikel Arteta added: “Jorginho is a midfield player with intelligence, deep leadership skills and a huge amount of Premier League and international experience. He has won in his career, but he still has the hunger and huge willingness to contribute here.
“We are so pleased to sign Jorginho and welcome him and his family to the club.”
Since joining Chelsea, Jorginho has been a fixture in their Premier League side and won the UEFA Champions League, UEFA Europa League, UEFA Super Cup and FIFA Club World Cup.
He started his career in the youth academy at Italian club Verona where he spent four seasons in the first-team, making 96 appearances before moving to Serie A side Napoli. There he won the Coppa Italia and Supercoppa Italiana in 2014 and made 160 appearances during his four seasons with the club.
Jorginho will wear the number 20 shirt and will immediately join up with his new teammates ahead of Saturday’s match at Everton.
Mikel Arteta’s side are five points clear at the top of the Premier League with a game in hand on the sides immediately below them.
