Oakland Raiders starting cornerback Ronald Bartell is expected to miss at least four weeks with a broken left shoulder blade, according to Bill Williamson of ESPN.com. Bartell was ostensibly Oakland's top cornerback. This means Shawntae Spencer and Pat Lee should start against the Dolphins on Sunday.
Spencer wasn't good enough to be active much of last season for the San Francisco 49ers. Lee couldn't cut it with the Packers. It's not a stretch to say that Oakland has the worst-looking cornerback group in the entire league.
Then again, the Dolphins may have the worst-looking wide receiver group in the league too. It will come down to protection. If Jake Long and company can protect Tannehill, he may actually see some separation between his wide receivers and the opposition Sunday.Follow Gregg Rosenthal on Twitter @greggrosenthal.