Raiders need to clear a roster spot for Cribbs

At some point soon, receiver/kick returner Josh Cribbs will sign with the Raiders.  For now, he can’t because the Raiders currently have 90 players. As explained by Paul Gutierrez of CSNBayArea.com, the Raiders mistakenly left long-snapper Nick Guess off the team’s roster entering last weekend’s rookie minicamp, which means that instead of having 89 players…