Robinson had a nearly identical output last season in Cedar Falls, Iowa, as UNI defeated the Redbirds, 26-16, with 16 carries for 40 yards.
No change at QB: ISU quarterback Brady Davis tossed three damaging interceptions on Saturday, but Spack is not looking for another starting signal-caller.
While leading ISU to a 6-3 record, Davis has completed exactly half of his passes (96 of 192) for 1,340 yards, six touchdowns and eight interceptions. He came in at 56 percent last season with 19 touchdowns and five interceptions.
Defense holds firm: As the Redbird offense committed three turnovers in a span of four fourth-quarter plays in its own territory, the ISU defense allowed just two field goals to the Panthers after those turnovers.