Patrice Evra hopes to help Juventus win a fourth consecutive league title - a feat Manchester United never quite achieved during his time at Old Trafford.
The 33-year-old left-back did lift the Barclays Premier League five times during his eight years in Manchester but the Red Devils' run towards claiming four in a row was interrupted by Chelsea in 2010.
Evra may not have been part of the Juve side that clinched three Serie A titles between 2012 and 2014, yet after making the "tough" decision to swap England for Italy, he intends to play a key role in another successful defence.
Speaking at his official unveiling, the Frenchman said: "It won't be easy to win four titles in a row. I managed to do it three times with Manchester United and know how difficult the challenge is.
"We also hope to do well in the Champions League. It's a great competition and we'll look to go as far as we can."
Evra admitted he had been especially keen to reunite with his former United team-mate Carlos Tevez, who left his friend behind when crossing the Manchester divide to join City in 2009.
He joined Juve last summer and scored 19 goals during his first season with the Bianconeri.
"Carlos is a warrior," Evra added. "It was tough for me to see him leave United for another team. We're great friends on and off the pitch.
"It wasn't easy to leave Manchester United, it was a decision I made for personal reasons.
"I'm happy with the choice I've made in coming here. Juventus is a great club with a wonderful history."
"The minute they came calling, I knew it was the right choice for me."
Evra, who will wear the number 33 shirt in Turin, has signed a two-year contract at the Juventus Stadium.
The transfer fee paid to Manchester United could rise to £1.2million and a further payment of £300,000 is due should Juve qualify for the 2015-16 Champions League.
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