The Cagliari midfielder - dubbed the ‘new Michael Essien’, in some quarters - is one of the hottest properties in European football.
Chelsea, now look to have jumped the queue, however, and will have to stump up around £10 million to land the powerful 19-year old.
Do they need him?
Central midfield is hardly an area the Blues are short in, with Nemanja Matic and Cesc Fabregas ever-presents, and Ramires capable of comfortably dropping deeper.
Beyond that, out-of-favour John Obi Mikel is an adequate fourth option and Ruben Loftus-Cheek - arguably Chelsea’s most promising youngster - is slowly emerging.
One worry over a potential move for Donsah would be the effect it could have on Loftus-Cheek’s on-going development at Stamford Bridge.
Much has been made of the Blues’ failure to promote from within, and the 19-year old gives Jose Mourinho his best hope of ensuring that changes.
The elegant midfielder has all the tools to become the future of the Chelsea midfield and should be nurtured into such a role over the coming years.