The Redskins have yet to decide whether to restore Griffin to the active roster for this week's game.
Asked if he had any doubts about whether the Redskins would bring him back, Griffin replied: "That's none of my concern. ... I'm here now. It's a new year."
In his first season with Washington, the 30-year-old Griffin was a regular in nickel packages and has 33 tackles and a forced fumble.
"I'm sure I'll be out there (Sunday)," Griffin said. "I'm in pretty good shape right now. Coach Shanahan feels comfortable about my situation."
AP Pro Football Writer Howard Fendrich contributed to this report.
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