Berardi is playing his way into Italy's Euros squad for next summer.
“Perhaps he was closest to leaving in 2016, but even then he was in sync with the club and very happy to remain so they could play in the Europa League," agent Simone Seghedoni told alfredopedulla.com.
“When you make your Serie A debut at 18, score four goals against Milan and get your face on the front pages, it's natural there's a lot of interest.
“If the moment arrives in future, it will always be in total agreement with Sassuolo. His transfer value is still at least €50m, because Sassuolo know how to make the most of the talents they help to nurture, achieving extraordinary results."