Jonathan de Guzman has agreed another loan deal from Villarreal to remain at Swansea City for the 2013/14 season.
Michael Laudrup has secured his third signing for the season after the permanent signings of Jordi Amat and Jose Canas.
Chairman Huw Jenkins said: "Everyone is happy the loan is continuing. Then Jonathan will review his long-term future next summer."
De Guzman spoke warmly of his first year in Wales in a recent interview.
He said: "We played well in a lot of games. We played good football and it's refreshing playing in a team that has a good football mind.
"I'm very satisfied with what happened. We did very well - we were very creative. We really put Swansea on the map."