First, that is a really strange thing to stumble across.
Second, I think you are lying. He was born on 06/05/1989 and his senior season was in 2012. He would have redshirted his first year on campus and played his last game as a 23 year old and would have presumably graduated in or before May of 2013
http://www.hawkeyesports.com/roster.aspx?rp_id=697
Third, Deandre Kane?
Yes Kane was old, didn't say that. So, if 2014 was his first NFL year, he sat for a year? I googled ferentz and he showed up.