Manchester United's stunning signing of Cristiano Ronaldo from Juventus came after the intervention of the forward's former Old Trafford teammates, sources have told ESPN.

The 36-year-old, who spent six years at United between 2003 and 2009, officially re-joined the Premier League side on Friday. Sources tell ESPN that the deal is worth €15 million with a potential further €8m in add-ons.

A team statement read: "Manchester United is delighted to confirm that the club has reached agreement with Juventus for the transfer of Cristiano Ronaldo, subject to agreement of personal terms, visa and medical."

Manchester City had seemed to be Ronaldo's next destination after ESPN sources revealed on Thursday that the former Real Madrid player had spoken on the phone to City manager Pep Guardiola about moving to the Etihad.