"At this moment, I can say just one thing - we are delighted," Juraj Venglos said in Slovakian daily Sport.
"I believe that he will make it at the right moment and will take the right direction."
Hamsik himself is remaining cool on the speculation, according to his father Richard.
He explained: "Marek got to know about the interest on Wednesday when everybody in Napoli began to take it as official news.
"So far he has not taken it too seriously. He is not bothered about it as he is mainly focusing on his performances for Napoli. He is happy there.
"Of course though it is pleasant if such a club shows interest."