The words Cristiano Ronaldo and Real Madrid could be entwined once more with reports that Cristiano Ronaldo Jr is training with the Spanish giants' academy.

Ronaldo's eldest son is said to have trained with Real's Under 16s on Tuesday ahead of a potential switch in the future.

Ronaldo Sr is Real's all-time record goalscorer with a staggering 450 goals in 438 games over nine seasons at the Santiago Bernabeu. He is arguably Real's greatest-ever player, and won 13 major honours during his time there.

Ronaldo Jr is currently on the academy books of Saudi side Al-Nassr - where his father plays for the first-team.

The 15-year-old is a forward, like his iconic father, and can play on either flank or through the middle.

The switch to Real, reported by The Athletic, would mean Ronaldo Jr has played for four of his father's clubs - with the teen having already been on the books of Manchester United and Juventus.

Although born in the United States, Ronaldo Jr has chosen to represent Portugal - earning his first call-up in their youth setup last May.

He made his debut against Japan in the Vlatko Markovic International Tournament and has since represented his country at U17 level.