Napoli fans again jeered Lorenzo Insigne during defeat to Chievo Verona.
Insigne missed a good chance to equalise Chievo's opening goal and was soon booed for his efforts.
"Today we saw many fans who helped him after the chance he missed," said Benitez.
"He worked hard, we know that in these situations Mertens has a different style, but Lorenzo worked hard and created opportunities."
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