Chelsea are applying a great deal of pressure on Napoli to sell Victor Osimhen.
The Nigerian forward is one who the Blues believe can lift them back to the upper echelons of the Premier League.
However, the 24-year-old won Serie A with Napoli last season and is loved by the club.
He was linked to the likes of Manchester United and Bayern Munich in the summer, but no move materialized.
Chelsea believe that Napoli will be hard pressed to resist a big offer if Osimhen does not renew his contract, says La Gazzetta dello Sport.