Napoli would have won the Scudetto this season if they still had Gonzalo Higuain in attack, according to Roberto Mancini.
Higuain scored a record 36 goals in 35 Serie A appearances as Napoli finished second to Juventus in 2015-16, form that encouraged the Turin giants to spend €90 million to sign him.
The Argentina international has won a domestic double in his first campaign with the Bianconeri and victory over Real Madrid in the Champions League final on June 3 would make it the first treble in the club's history.
Napoli have accumulated a club record 83 points this season to leave them third behind Juve and Roma with one game to play, and Mancini thinks they could have overthrown Massimiliano Allegri's side if they had retained Higuain.
He told La Domenica Sportiva on Rai 2: "Who got the best deal with Higuain? Everyone; Napoli because they got a large sum, Higuain because he won the title and is in the Champions League final, Juve because it is clear that adding him with Dybala has improved them.
VictoryMedalsZebra May 21, 2017
"Juve's solid core is very important and helps the new arrivals to fit in well. Those who have come in are great players, so in the end they're the strongest team.
"Juve will continue to win if the others try to do worse. Napoli had their best season with records for points and goals and finished third. I think Roma are closest to Juve but they still came second.
"I think that Napoli would have won the Scudetto with Higuain."
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