Chelsea scouts were in attendance to monitor Victor Osimhen at the Stadio Brianteo on Sunday, according to II Mattino.
The Nigeria international was in action as newly crowned Serie A champions, Napoli succumbed to a 2-0 defeat against their hosts, Monza.
The defeat was Luciano Spalletti’s side’s first in eight games across all competitions.
Two representatives from the West London club saw the game live inside the stadium.
The Blues are interested in signing the forward this summer.
Napoli president, Aurelio De Laurentiis has reiterated his desire to keep Osimhen but could still be tempted by a big offer.
Osimhen helped Napoli end their long wait to lift the Scudetto, contributing 23 goals and four assists.
