Kuper has been dealing with persistent scar tissue issues in his surgically-repaired ankle and, according to CBS Sports, coach John Fox has stated Kuper also has a migraine issue that could keep him out of the game. Kuper has played in just nine games this season, while the Broncos have allowed 19-of-21 sacks in the games in which Kuper has not been in the lineup.
Fullback Chris Gronkowski is listed as questionable after missing Wednesday's practice with a hamstring injury. The third-year player has one reception for 11 yards in 2012.
Safety Mike Adams (knee), receiver Eric Decker (ankle), receiver Trindon Holiday (knee), center Dan Koppen (knee), safety Jim Leonhard (ankle), running back Knowshon Moreno (ribs), defensive tackle Kevin Vickerson (groin), receiver Matthew Willis (knee) and linebacker Wesley Woodyard (ankle) are probable for Sunday's game.