The Serie A champions have opened talks with Lukaku about a potential switch after Inter Milan failed to meet Manchester United’s asking price.
Manchester United want £80million for Lukaku and are prepared to let the Belgian leave this summer if that figure is matched.
Juventus are now ready to move for Lukaku, after getting the green light from Ronaldo.
The Portuguese have reportedly been heavily involved in transfer talks this summer, as the Italian giants aim to win the Champions League next season.
Juventus and Ronaldo hope an overhaul of the squad will boost their Champions League hopes and have already signed Ajax superstar Matthijs de Light, as well as Aaron Ramsey and Adrien Rabiot.
Juventus confirmed “interest” for Paulo Dybala and are ready to offer him to Manchester United in exchange for cash plus Romelu Lukaku. Dybala is valued at €100m, whereas Manchester United have already told Inter they want €85m for Lukaku