As reported on Napoli official website, Partenopei thanked national-title rival side Inter Milan, for taking care of Victor Osimhen, right after he head to quit the pitch, last Sunday, during the game Napoli were facing Neroazzurri therein, at "Meazza" stadium, in Milan. Here's the official note:
"Victor Osimhen was released from the Ruesch clinic this morning and has returned home. He will rest for 10 to 15 days before being reassessed.
Napoli and Dr. Raffaele Canonico would like to thank Inter, in particular Giuseppe Marotta and Dr. Piero Volpi as well as those who helped at Niguarda hospital in Milan, for their care and quick intervention following Victor Osimhen's injury".
Source: transfermarketweb.com