The midfielder has signed a contract that will keep him at Osasuna until the summer of 2013.
Cejudo is currently out with an injury, that was discovered during the medical, that will keep him out of action for up to a month.
“I have no experience in the Primera Division, but I come from a club where is a lot of pressure on me put on by the fans and the city,” Cejudo told Osasuna’s official website.
“My intention is to recover as soon as possible and be available to the coach.
“My goal is to work hard and help the team. I may not be very good int he beginning, but I will get better with experience playing in the La Liga.
“I can only sacrifice myself to get better, and I ain to contribute my part to help the side to go as high as possible.”