The Ghanaian was linked with Arsenal and Chelsea while he was at Cagliari, but his representative Olivier Arthur has claimed that English sides are still keeping tabs on the midfielder.
The 21-year-old has impressed at Bologna, scoring five goals in 60 Serie A appearances and is also said to have attracted serious interest from Inter Milan.
"Donsah has been growing steadily and he's adapted to a league as difficult as the Italian one so I'm convinced he'll become one of the best in the world in his role," Arthur told FCInterNews.
"It's no coincidence that it's not just Inter who are following him, a lot of clubs in England and Russia like him, but they'd have to convince Bologna to give him up, then talk to me.
"Do Inter want him? None of the directors have contacted me because I'm in Ghana at the moment, but it seems clear to me that the Nerazzurri are thinking of signing him.
"Could it happen in January? He's a key man for [Bologna manager Roberto] Donadoni... but I think it's possible. Inter are a top club and everyone wants to play for such a prestigious team."
Donsah has represented Ghana at Under-20 level, earning four caps for the youth international team.