Victor Osimhen trained separately from the rest of his Napoli teammates for the second day in a row on Monday.
Osimhen is currently battling with muscle fatigue.
Multiple sources in Italy claimed Osimhen didn’t join his teammates on the pitch but worked separately in the gym instead.
The Nigeria international resumed pre-season training with Napoli last week.
The 25-year-old is expected to leave the Partenopei this summer but no club, has yet paid his release clause or sent offers.
The release clause in the contract he signed last December is said to be €130m.