With Manziel facing scrutiny, other schools answer questions about their stars' autographs

A simple search on eBay reveals Johnny Manziel is far from the only college football player whose autograph is for sale.

Pick a star and you can find memorabilia with a signature the seller claims to be verified.

South Carolina's Jadeveon Clowney. Ohio State's Braxton Miller. Oregon's De'Anthony Thomas. Louisville's Teddy Bridgewater. Alabama's AJ McCarron. The list goes on and on.

ESPN has reported the NCAA is investigating Manziel for getting paid to sign autographs, and that has led to other schools being asked questions about whether their players were ever paid for signatures.

If the allegations made by unidentified sources to ESPN against Manziel are ever proven true, his eligibility for the coming season could be in doubt as well as his status as Heisman Trophy winner.