Agent Bayram Tutumulu says Swansea City boss Michael Laudrup was the big influence on Real Betis midfielder Jose Canas moving to the Liberty.
Canas' contract at Real Betis expires in the summer.
"Canas from Real Betis - one Premier League team have offered him double his salary," Tutumulu said.
"And you know what the boy tells [them]? He tells [them] no, I want to go to Swansea City.
"Players have other teams offering them more money but they prefer to come to the team of Michael Laudrup."