Greg Jennings, Marshall Newhouse have concussions Posted by Mike Florio on August 6, 2012, 7:53 AM EDT The Packers arguably have the best receiving corps in the NFL, and the guys who sit below No. 1 on the depth chart could have increased opportunities in the immediate future. Greg Jennings suffered a concussion during Saturday’s Family Night scrimmage at Lambeau Field, according to the Green Bay Press-Gazette. Coach Mike McCarthy disclosed the injury on Sunday after practice. Also out (for now) with a concussion sustained Saturday night is left tackle Marshall Newhouse, who is on track to win the starting job as of Week One. McCarthy wouldn’t rule out either guy in advance of Thursday’s preseason opener against the Chargers. There’s a greater need for Newhouse, given that Derek Sherrod (leg) still isn’t ready to go.