The 25-year old Portugal international has been linked with a summer move to Spurs and although he is open to a Porto departure, he isn't clear on whether Tottenham's interest is serious.
"I will continue to work," he told RTP. "If an offer arrives, and it is good for both parties, Porto will, of course, study it.
"I do not know if there is the possibility of joining Tottenham. Every player has the ambition to try new leagues, but I am at Porto and I will continue to work in the same way."