Chelsea boss Maurizio Sarri believes Napoli can still overturn a 2-0 first leg defeat to Arsenal and reach the Europa League semi-final.
The Partenopei lost 2-0 at the Emirates on Thursday thanks to Aaron Ramsey and a deflected Lucas Torreira strike.
Sarri spoke to Sky Sport Italia and was asked about his former club.
“Arsenal are a very strong team who rarely lose by three clear goals, but I also know the lads at Napoli and the atmosphere at the San Paolo.
“That’s why I say the tie is still open.”