Arsenal have completed the transfer of full-back Andre Santos from Fenerbahce.
The two clubs agreed a fee, believed to be £6.2m, on Monday evening and the Brazilian international has signed a long-term contract at the Emirates Stadium.
"I am delighted to have signed for Arsenal. It was one of my dreams to play for a major European football club and I have accomplished this," Santos told the club's official website.
"I am very happy to be part of this team. All the Brazilians who came to this club spoke wonders about it and I am delighted to be part of the Arsenal family."
The 28-year-old will wear the number 11 shirt.