Exum (ribs) has been placed on injured reserve, Chris Tomasson of the St. Paul Pioneer Press reports.
The Vikings have dealt with a ridiculous string of injuries at the safety position over the past few weeks, allowing Exum to make a couple of starts. The team is now left with Harrison Smith (knee/hamstring), Robert Blanton (knee), Andrew Sendejo (knee) and newly-signed Anthony Harris.
Joseph (foot) will have toe surgery during the offseason, Chris Tomasson of the St. Paul Pioneer Press reports
This shouldn't come as any surprise, given that Joseph dealt with a foot injury throughout the entire second half of the season. He missed Weeks 12-16, but with 56 tackles in just 12 games, Joseph cemented his reputation as one of the league's better run-stopping interior linemen. He only has 12.5 sacks in 81 career games.
Montgomery (ankle) continues to nurse his ankle injury and is now off crutches, Jason Wilde of ESPN.com reports.
After undergoing surgery on his ankle in December, Montgomery has shown steady progress in the hopes of returning to the field healthy this season. "Everything is moving smoothly. My timeline is their timeline. We're all working together and just making sure the best things happen for me to get healthy", Montgomery said.
Nelson (knee) remains limited at OTAs, according to Packers reporter Jason Wilde.
Nelson is doing individual work - running routes and catching passes - though presumably not at full speed. Having suffered his torn ACL last preseason, he may be ready for full participation at some point in camp. First, he'll need to prove that he can make sharp cuts while running at full speed. Nelson remains on track for Week 1.
Goodson has been suspended for the first four games of the 2016 regular season for violating the NFL's policy on performance enhancing substances, the Milwaukee Journal Sentinel reports.
Goodson will be free to participate in all of the Packers' offseason and preseason preparations, but will be forced to miss the first quarter of the upcoming regular season. A depth cornerback that saw more playing time toward the end of last season, Goodson's absence will open the door for teammates to fill his role on defense and special teams.
Pennel has been suspended four games for a violation of the NFL's substance abuse policy, the Milwaukee Journal Sentinel reports.
An undrafted free agent in 2014, Pennel served behind B.J. Raji and Letroy Guion last season, notching one sack among 25 tackles. The Packers have already inked Guion to a three-year deal, and Raji may leave in free agency, leaving more snaps available to Pennel once he fulfills the suspension. However, the preceding is assuming Pennel even lands a spot on the eventual 53-man roster.