CHARLOTTE, N.C. -- Panthers linebacker Luke Kuechly and center Ryan Kalil are out for Sunday’s game against the Raiders, but they will travel with the team.

The Panthers leave Friday for a ten-day swing out west as they play at Oakland this Sunday and then Seattle the following Sunday.

Kuechly suffered a concussion during last week’s game against the Saints and did not practice all week.

Kalil re-injured his shoulder and also missed this week’s practices.

Ron Rivera said Friday that he’s hopeful both players will help coach from the sidelines on Sunday, and possibly be ready to go next weekend against Seattle.

Panthers defensive end Mario Addison is also out for Sunday’s game against Oakland and will not travel with the team.

In addition to those injuries, the Panthers have five players listed as 'questionable' against the Raiders, including both backups for Kuechly and Kalil.

Rivera said linebacker A.J. Klein still has another step to complete in the concussion protocol while center Gino Gradkowski is coming back from a knee injury. Safety Tre Boston was limited on Friday due to his ankle, but Rivera says he looked good. Cornerback Leonard Johnson and safety Colin Jones are also listed as questionable due to a chest and concussion injury.

To top it off, the Panthers have made roster changes.

After missing the last eight weeks, Michael Oher was placed on injured reserve with a concussion.

Cornerback Zack Sanchez was moved to injured reserve with a groin issue.

Offensive tackle Donald Hawkins was waived, while the Panthers added offensive lineman David Yankey, defensive end Ryan Delaire, and cornerback Lou Young.