Everton have signed Brazil midfielder Allan from Italian side Napoli on a three-year deal, the Premier League club said on Saturday.
Financial details of the deal were not disclosed, but British media reported Everton had paid a fee of around 25 million pounds to Napoli for the 29-year-old.
Allan scored 11 goals and grabbed 16 assists in more than 200 appearances for Napoli across all competitions, helping them claim the Coppa Italia last season.
"It is a real pleasure to sign for Everton. I am immensely happy to be here," Allan said in a club statement.
"I hope, like I have done in my entire career, I contribute with my performances together with my teammates and that I put in some great games, great performances and win important things."