Brazilian forward Hulk has admitted that he would like to join a Premier League club this summer.
Hulk told reporters: "I have left a door open for being transferred to another league. This could be the time for me to move.
"I would feel comfortable with moving clubs and the English league is one that appeals to me.
"I have preference for playing in the Premier League or the Spanish Liga, because they are the two leagues that are the most seen all over the world."
The 26-year-old has scored 52 goals in 96 league games during his time in Portugal to attract the attention of Europe's biggest teams.