The Germany international, off contract in June, was again confirmed as a target for Juventus by their general manager Beppe Marotta on Sunday. However, Zorc says the Italians aren't alone.
Bayern Munich have also been linked with Can this season.
Zorc told Sky Deutschland: "An excellent player. He is in the sights of the very, very large clubs of Europe."
In Turin, it's suggested Juve are offering Can a deal worth £4.5m-a-year to move to Italy in June.