CAMP TONTOZONA - Arizona State defensive tackle Saia Falahola suffered a torn elbow tendon during a recent practice and returned to the Valley on Thursday for a magnetic resonance imaging exam.
Coach Dennis Erickson said that he would have the results later Thursday afternoon.
"If it's partially torn, he'll be back in three or four weeks," Erickson said. "If it's totally torn, he'll have to have surgery and be out for the season."
Falahola, a 6-foot-2, 301-pound redshirt freshman, was moved to defensive line from the offense during the spring. He is among a group of players -- including Jon Hargis, Jonathan English, Alex Asi, and Zach Niusulu -- battling for playing time behind projected starting tackles Michael Marquardt and David Smith.
The injury occurred during a drill on Wednesday, Erickson said. It is the Sun Devils' second serious injury in three days; first-string safety Troy Nolan is out at least two weeks with a shoulder ailment.
Asi (knee), defensive end Kellen Mills (ankle) and receiver Brandon Smith (ankle) were among those that did not participate in the morning practice. Receiver-tight end Tyrice Thompson (concussion) wore an orange (non-contact) jersey.