"I am very happy to have joined Swansea City. Since I've been a little boy it has been my dream to play in the Premier League," Pozuelo told the club's official website. "From the moment I heard of the interest from Swansea I have watched their games and followed the news at the club.
"The style of the team suits me, and so too does the style of the manager. Of course, there are a lot of Spanish players here including my old Betis teammate Jose Canas, and that will help me to settle quickly.
"I am looking to improve my English immediately as I want to communicate better with my teammates. On the pitch I just want to give everything I have to the club in order to help the team this season."
Swansea begin their pre-season tour of the Netherlands on Wednesday.