Dries Mertens feels he'll be stronger for Napoli after a first 12 months of Serie A football under his belt.
The winger arrived last summer from PSV Eindhoven.
"It was a big test to come and play in a tough League. I confess I had some trepidation, knowing that I ran the risk of not playing enough.
"At PSV I was always a starter, while here I would not have a place secured. I was afraid of losing my national team spot, to not go to the World Cup.
"Instead, just the opposite has happened, and this season just passed has been one of professional maturity, I have enriched my knowledge of an evolved and difficult football.
"Much of this I owe to Napoli and Rafa Benitez, for their continued expressions of esteem.
"My future? We'll see. For the moment I am happy here, whilst I have a contract for five seasons. This year I did well, but I know I can still improve, always here with Napoli.
"I am not thinking about changing team."
