According to the Raiders' press release, the team waived wide receiver Milton Williams to make room for Hill on the roster. Hill shares an agent with Oakland quarterback Derek Carr.
Another notable former Wildcat receiver to have suited up for the silver and black is Juron Criner. Ricky Hunley also played for the Los Angeles Raiders in 1989 and 1990, and is currently an assistant linebackers coach for the Oakland franchise. Arizona offensive line coach Jim Michalczik served in that capacity for the Raiders in 2009 and 2010.
Austin is listed on the team's official online roster, and hopefully he can make the team coming out of training camp this summer.