Vieira was sold by Porto last week to the Gunners.
Jota said: "Lately we have had more and more players in what, for me, is the best league in the world. And that is the result of the work of the country, of all the formations we have around the country.
"We are working very well. This is being reflected. Regarding the particular case of Fábio Vieira, it is with special affection that I see him reach the Premier League. He is a good boy and I wish him the best. But against my club he loses, obviously."