Michigan running back Ty Isaac is not likely to see the field this year.

That was what the Wolverines were told by the NCAA when their hardship-waiver application for Isaac was denied last week.

U-M coach Brady Hoke said today that Isaac, who transferred to Michigan after one year at USC, has appealed the decision.

“You don’t know how long it will take,” Hoke said.

The NCAA mandates a year off for transfers, unless there are extenuating circumstances. Isaac’s appeal is based on his mother’s health in Joliet, Ill.

When he transferred in June, his high school coach, Joliet Catholic’s Dan Sharp, explained the rationale to the Free Press: “His mother had some minor surgery and, from my understanding, it was an inner-ear type, so it would be difficult for her to fly. But I also think part was he just wanted to be (near) home, and there were a lot of changes out at USC since he was there. I think it’s a combination of many things, not just one.”

According to Hoke and U-M players, Isaac has worked with the reserves during camp and never was discussed among the contenders for the starting job.