It appeared the Lions had made a great offseason move by signing undrafted rookie CB Aaron Berry who played at Pittsburgh. They loved his speed and intelligence. With Dave Wannstedt as his college coach, Jim Schwartz said he was prepared to step right into the NFL. He missed a few weeks of training camp with a hamstring injury, but blended in quickly when he was healthy.

Then on Sunday he injured his shoulder in the loss at Chicago. Prior to the injury he had an interception which he ran back 23 yards to set up a touchdown by rookie Jahvid Best.

Berry was placed on injured reserve today (Tuesday) the Lions have confirmed. That means he's out for the season.

Because he was one of only four cornerbacks on the roster, the Lions signed CB Nathan Vasher who had been released by the San Diego Chargers.

The 28-year-old cornerback spent six seasons (2004-2009) with the Chicago Bears where he started 46 games.

(Follow me on Twitter @PaulaPasche.)