Samper joined Granada last month on-loan.
"I've come to Granada to grow. It's a key year for me and I hope to have a great season. I'm focused on Granada and we'll see what happens in the future," he said.
"The target is to help the team have a good season, improve as a footballer and excite the fans.
"I had several offers, but I liked the project they've got here. The manager's style [Paco Jemez] is what most convinced me to come, it was my decision and I'm convinced it was the best.
"I knew if I left on loan, it would be for Granada. It's the best option for me. There was a lot of speculation but I had no doubts."