After four years of playing away on-loan, Wellington can now formally begin his Premier League career after receiving his Spanish passport last month.
"In the beginning they told me that it would take two years for the paperwork, but I had to wait four years. But now it is clear. In July, I finally get the chance to play in England," Wellington told Sambafoot.com.
"Yes, it's a dream of mine to play there. Arsenal are a great club.
"Unfortunately it has not been possible because of the administrative hassles. But now I think I'm ready, I've learned a lot in Spain. If all goes well, I will be there next season."