Eden Hazard celebrates after scoring the first goal for Chelsea
The enigmatic former striker talked a lot of sense about the game and provided some interesting insight when it came to Chelsea's new manager and Italy boss Conte too.
The game saw Belgium turn in an abject performance led by captain and Stamford Bridge star Hazard who was particularly disappointing.
Football Soccer - Italy v Finland - International Friendly - Bentegodi stadium, Verona, Italy
'If you don't run you will be straight out'
And Vialli had a stark warning for the attacking midfielder ahead of Conte's arrival after the tournament.
"Conte has them so well organised, we have so many options," Vialli said on BBC.
"We love defending but we were also ready to attack at every moment.
"Hazard has to do better, he has to work harder.
"Conte demands that you run. If you don't run, you will be straight out."
Belgium's Eden Hazard in action with Italy's Marco Parolo
A Hazard for Eden
Hazard had a poor season for Chelsea as they fell from grace and sacked manager Jose Mourinho.
The boy wizard was one of three Blues players blamed by some fans for Mourinho's dismissal.
Banners branded him, Diego Costa and Cesc Fabregas 'rats' at Stamford Bridge when Mourinho was shown the door, as reported by the Evening Standard at the time.
Hazard improved under Guus Hiddink towards the tail end of the season but still only managed four goals from 30 appearances.
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Heed Vialli's advice
But he should take heed of Vialli's advice given his knowledge of Italian football and his status in West London.