Portuguese star Cristiano Ronaldo has completed his transfer from Juventus to Manchester United, returning to the club he left in 2009. 

Ronaldo, who is 36, has penned a two-year deal at Old Trafford, with the option of a third year.

The Portuguese won the Champions League with the Red Devils before his career soared at Real Madrid.

He has won the Ballon d'Or five times and will become the leading international goalscorer of all time should he find the net against the Republic of Ireland in Wednesday's World Cup qualifier.

Ronaldo, who scored 118 goals during his first spell with Manchester United, is determined to hit the ground running upon his return to the Premier League.

“Manchester United is a club that has always had a special place in my heart, and I have been overwhelmed by all the messages I have received since the announcement on Friday. I cannot wait to play at Old Trafford in front of a full stadium and see all the fans again. I'm looking forward to joining up with the team after the international games, and I hope we have a very successful season ahead.”

United manager Ole Gunnar Solskjaer, a former teammate of Ronaldo's, has described the forward as a 'great human being'.

“You run out of words to describe Cristiano. He is not only a marvellous player but also a great human being. To have the desire and the ability to play at the top level for such a long period requires a very special person. I have no doubt that he will continue to impress us all and his experience will be so vital for the younger players in the squad. Ronaldo’s return demonstrates the unique appeal of this club and I am absolutely delighted he is coming home to where it all started.”