Shojaei requires surgery for the third time in six months, due to a injury in his left foot.
“The player will remain sidelined for a period still to be determined, but the most important thing now is that the bones join together healing themselves properly,” Osasuna club doctor Dr. Patxi Cipriain said on the club’s official website.
“We still don’t know whether this will take four or five months, or even if the player will miss the rest of the season,” he added.