Sheppard, who has a strained right quadriceps, and Strickland, who has a high right ankle sprain, haven't practiced or played since being injured in the Jets' Week 2 victory over the New England Patriots.
"I was hoping we'd be able to get them back and they are doing a lot better," Jets coach Rex Ryan said Friday. "They're running, but they're not ready to go 100 percent. We think we could probably play them right now if we had to, but I don't think it's fair to them."
Copyright 2008 by The Associated Press