Patrick Vieira has spoken of his delight after completing his £13.7m move to Juventus from Arsenal.
The 29-year-old former Gunners captain has signed a five-year contract after passing a medical in Turin.
"I'm really proud, I'm really happy today, because it's a really special day," the France midfielder said.
"For me, in the last few years, Juventus has always been at the top, not only in European football but also national as well."
Vieira said he was relishing the chance to shine for Juventus - but admitted leaving Arsenal had been tough.
"It's a really big challenge but I am ready for that," Vieira said.
"If you spend nine years somewhere it's difficult. When you make a decision you think about what you want to achieve.
"I achieved a lot with Arsenal, in the nine years I spent there we won a lot of trophies. And I move on.
"What I want is just to keep going and keep winning trophies for my new team.
"Juventus has been a really stable club in the past few years and when I look at myself as a human being and as a player, and I look at Juventus, it's the perfect club for me."
Vieira will renew his partnership with Juve coach Fabio Capello, who was in charge at AC Milan when they signed the Senegalese-born midfielder as a teenager in November 1995.
"Capello was always able to find the right words to motivate me," he said.
"Back then, there were many other talented players and there wasn't room for me, but he made me believe in myself.
"It was a year in which I learnt a lot. I was very young. Now I'm a more mature person."
Vieira said he was confident he would be able to deal with the racism which has marred Serie A matches in recent times.
"I know it exists, but it's the work of a small minority," he said.
"It would be a pity to turn down an opportunity like this because of something like that.
"It's a problem all black players have to put up with in Italy. If it happens to me then I'll deal with it, just like all the other players do.
"The important thing is to show what you can do on the pitch."