Napoli Coach Rafa Benitez has praised the contribution of Dries Mertens to his side but says he can still improve.
The 26-year-old Belgian arrived at San Paolo last summer and has attracted praise for his recent Azzurri performances.
“I know Dries well and I know what he is capable of doing,” Benitez told Voetbal International. “He is an exemplary professional.
“He is improving even more at the moment, especially with his defensive movement and positioning.
“But he can do even better!”
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