Free transfer Willian has posed in an Arsenal strip for the first time after signing a three-year deal with the Gunners.
The 32-year-old was a free agent after leaving Chelsea, having spent seven years at Stamford Bridge.
Willian had rejected the offer of a two-year extension with the Blues, paving the way for him to join their London rivals.
Arsenal head coach Mikel Arteta admitted he was impressed by Willian's desire to join the Gunners.
"I believe he's a player that can really make a difference for us," said Arteta.
"We have been monitoring him for the past few months, we had a clear intention to strengthen in the attacking midfielder and the winger positions; he is a player that gives us a lot of versatility, he can play in three or four different positions.
"He has the experience of everything in the football world but to still have the ambition to come here and contribute to bring the club where it belongs. I have been really impressed with all the talks I have had with him and how much he wanted to come."
Technical director Edu added: “I know him very well, since a long time ago because we've been working together for the Brazilian national team and of course I was following him because he played for another club.
"He has a lot of fantastic attributes as a person, as a football player of course, his character.
"I'm 100 per cent sure that everybody in the dressing room, the fans, myself and Mikel will enjoy having Willian in our side.“
Check out footage of Willian posing in Arsenal gear in the Twitter clip above...
