updated 2:27 p.m.: Vlad Emilien has left Michigan football team, plus Wolverines injury report

Emilien's future is unknown.

If he enrolls at another school before the add-drop date this fall - typically the 12th day of classes - he can count the 2010 season as the sit-out year required by NCAA rules.

Either way, he'll likely lose a year of eligibility because he played as a backup in Michigan's season-opener against UConn, although he could appeal the NCAA for an extra year of eligibility.

His departure is the latest dent in a Wolverines secondary hemorrhaging players.

In summer camp, cornerback Justin Turner transferred to West Virginia and senior corner Troy Woolfolk sustained a season-ending leg injury.

Less than a week before the UConn opener, backup free safety Jared Van Slyke, one spot ahead of Emilien on the depth chart, broke his collarbone and was lost for the year.

Cam Gordon starts at free safety, and Rodriguez said Wednesday true freshman Ray Vinopal will back him up.

“He’s really come on the last couple of weeks,” Rodriguez said.

Injury report

Speaking of positions where depth has run thin for Michigan, hybrid linebacker-safety Carvin Johnson remains doubtful for Saturday’s game against Notre Dame.

Thomas Gordon will be his replacement in the lineup. He’ll be backed up by Floyd Simmons.

Michigan has more depth at running back, but Fitzgerald Toussaint will not be among the Wolverines in the rotation.

“He’s doing a lot better, and he’s doing more things at practice, but it doesn’t look like he’ll be ready to go,” Rodriguez said. “We’re pleased with his progress.”

Earlier in the week, Rodriguez listed as Roy Roundtree doubtful after the receiver sustained internal bruises on a nasty collision with UConn defenders. He’ll have more tests Friday.

“He feels good and feels better, but after tomorrow’s workout we’ll have a better idea,” Rodriguez said.