"To say that he's a 'no,' I don't see it that way," Kubiak said Thursday. "Obviously, he's (more sore) ... than he was last week at this time or would've taken in some of the practice. He did run some. It's not like he didn't do anything."
Johnson aggravated the injury during last Sunday's 27-13 loss to the Dallas Cowboys.
Johnson said Thursday that he plans to play against the Raiders and that the ankle feels no worse than it did last week.
Safety Eugene Wilson (hamstring) is listed as doubtful, while linebacker Kevin Bentley (knee) is out.
For the 1-2 Raiders, S Hiram Eugene (hamstring), DT John Henderson (foot), WR Darrius Heyward-Bey (groin), CB Chris Johnson (neck, ankle), WR Louis Murphy (collarbone), DT Richard Seymour (hamstring), and CB Jeremy Ware (ankle) are all listed as questionable.
LB Ricky Brown (hamstring), G Robert Gallery (hamstring), LB Travis Goethel (back), CB Walter McFadden (hamstring), and WR Chaz Schilens (knee) are out.
The Associated Press contributed to this report.