DeSean Jackson will miss three to four weeks with a strained hamstring.

Jackson is in his second season with Washington.

Washington plan to keep Robert Griffin III as their backup quarterback and will not release him ahead of Saturday's roster deadline.

Daniel Snyder and president Bruce Allen want to keep Griffin despite the financial risk associated with retaining him.

Griffin, who has been sidelined since Aug. 20 with a concussion, was scheduled to consult with an independent neurologist Friday.

Robert Griffin III has blamed an intern for liking a post on Instagram that criticized the Washington organization, including Dan Snyder and the front office. The post also lauded Griffin.

"I just wanted to set the record straight on this one," wrote Griffin on Instagram. "I did not "like" that IG post ridiculing our team. I have not been social media active consistently for awhile now and am ultra-focused on working to get back on the field and trying to help this team. One of our interns who helps with Instagram liked the post. As soon as I was made aware of it, it was immediately unliked. That is not how I feel and I appreciate your understanding."

Some high-ranking Washington officials and coaches want to part ways with Griffin, who has been sidelined with concussion symptoms, but are meeting resistance from ownership.