The former Real Madrid, Barcelona, Inter and AC Milan striker thinks Jose Mourinho can turn them into stars.
Oscar came in for criticism last term, accused of saving his body for the World Cup, however he’s put in some inspired displays this season.
Whereas Willian, despite being a squad player, came become a top player under the Portuguese’s tutelage.
“Chelsea is definitely the right team for them, because of the nature of the English league,” Ronaldo said.
“There are a lot of goals, there is a lot of attacking play.
“The players working under Mourinho have a lot of potential to fulfil because of the way he is as a coach.
“So, overall, it is certainly a good decision for them to be at Chelsea.”