Manchester United have brought Portugal forward Cristiano Ronaldo back to the club after completing his signing from Italian club Juventus.

United have paid 15m euros (£12.85m) – and a possible 8m euros (£6.85m) in add-ons – for the 36-year-old.

Ronaldo has signed a two-year contract with the Old Trafford club, with the option to extend for a further year.

He scored 118 goals in 292 appearances in his first spell at United before leaving for Real Madrid in 2009.