"But you know me," Rivera added. "I'm optimistic."
Whittaker missed the finale with a high ankle sprain. He's no longer wearing a boot but isn't as far along in his recovery.
"Probably the one that will be a concern more than anyone else will be Fozzy," Rivera said. "But for the most part, I anticipate having everybody there."
"He's a sprinter, he's a runner, and obviously his legs are important," Rivera said. "As he starts going again, we've got to be smart and judicious with it. We'll get him to the point where he's confident and comfortable, and we'll get him rolling."
For the Seahawks, running back Marshawn Lynch (abdomen) and tight end Luke Willson (concussion) were inactive for Sunday's dramatic victory at the Minnesota Vikings.
LAST TIME THEY PLAYED