He spent six seasons at Old Trafford between 2003 and 2009, where he won the Ballon d'Or as the world's best player in 2008 alongside his team accolades, before sealing a then world record 80 million pounds ($110 million) move to Real Madrid.

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MANCHESTER, England, Aug 31 (Reuters) - Cristiano Ronaldo declared he was back where he belonged after he re-joined Manchester United from Juventus on a two-year deal on Tuesday, with the forward dedicating the move to his mentor Alex Ferguson.

"Everyone who knows me, knows about my never ending love for Manchester United. The years I spent in this club where absolutely amazing and the path we've made together is written in gold letters in the history of this great and amazing institution," he wrote on Instagram website

He then went on to capture two LaLiga and four Champions League titles with Real Madrid, as well as four further Ballon d'Or awards, ending his stint at the Spanish club as their all-time top scorer with 451 goals.

United announced that they had agreed a deal with Juventus website to bring the 36-year-old back to Manchester last week, with the transfer now complete after the Portuguese forward passed a medical, secured a visa and agreed personal terms.

"My first domestic League, my first Cup, my first call to the Portuguese National team, my first Champions League, my first Golden Boot and my first Ballon d´Or, they were all born from this special connection between me and the Red Devils," added Ronaldo, who spent the last 12 years winning a glut of trophies at Real Madrid and Juventus.

Juve said the transfer fee agreed was 15 million euros ($17.74 million) plus eight million euros in performance-related add-ons as Ronaldo returns to the club where he won eight major trophies from 2003-2009.