Mac's Football Blog: Raiders Sign CB Brandon Underwood. The former Green Bay Packers defensive back hasn't played in the NFL since the team released him before the start of last season. New Raiders GM Reggie McKenzie certainly knew him from their time together in Green Bay, and he apparently thought he might have something to offer.

He was the top candidate to take over as the nickel back in 2010, but a poor preseason game against the Browns (and a subsequent injury) doomed his chances. Mike McCarthy had spoken well of his progress, but a 2010 police investigation, and his 2011 arrest on a domestic violence charge, didn't help him.

He had shown some potential so he still might make something of his NFL career.