The Juventus superstar, 35, is currently in the middle of a 14-day quarantine ahead of returning to senior training.
The Portuguese is unable to meet up with Juve team-mates as he is in two-week isolation after flying back from Madeira, where he had spent most of the lockdown.
But with Serie A set to return to action – behind closed doors – in the coming weeks, the five-time Ballon d’Or winner showed he was hard at work.
And while working on his own game, Cristiano Sr is also clearly passing on his infamous work ethic with his nine-year-old boy.
On Instagram, where the video racked up more than 4million views in 30 minutes, he wrote: “Like father, like son 🙂 Happiness above all.”
Cristiano Jr is also on the books at Juventus and is proving to be quite the talent.
As of the end of last season, the youngster had scored an incredible 58 goals in just 28 games for the Under-9s.
At that time it was DOUBLE the amount his famous father had managed for the senior team.
Cristiano Sr will be hoping to add to this season’s tally of 25 when Serie A returns to action – possibly before the end of the month.
Germany’s Bundesliga will return to action this weekend and Italian chiefs are confident they will follow soon after.