Former Brazil striker Ronaldo believes that compatriots Willian and Oscar are working under the perfect manager in Jose Mourinho at Chelsea.

The Blues are currently four points clear at the top of the Premier League table having gone 11 games without tasting defeat.

Brazilian duo Willian and Oscar have played a key role in the club's early-season success, and Ronaldo is confident that they can continue to thrive at Stamford Bridge.

"I think it's definitely the right team for them to be at because of the nature of the English football league, which has a lot of goals, a lot of attacking play," FourFourTwo quotes the 38-year-old as saying.

"The players under Mourinho's coaching, they have a lot of potential because of the nature of him as a coach. So overall, it's definitely a good decision for these young talents to be in the Premier League."

Ronaldo scored 62 goals at international level, winning the World Cup with the Selecao on two occasions.