Nebraska coach Bo Pelini has announced that linebacker Zaire Anderson is out for the season because of a right knee injury.
Anderson said Tuesday that he tore his anterior cruciate ligament in practice last week but didn't know it at the time. He played with the injury while making his first start in the Cornhuskers' 42-13 win over Arkansas State.
Anderson, a transfer from Riverside (Calif.) Community College, backed up senior Alonzo Whaley at weakside linebacker the first two games. The junior made three tackles against Arkansas State.
Either freshman David Santos or Whaley will take over Anderson's spot in Saturday's game against Idaho State.
Pelini said Anderson might apply for a medical redshirt to save a season of eligibility.