The 30-year-old told the team's website: "I felt a little bit rusty yesterday. Took a little bit more as far as reps today and felt better. I felt I was moving well. I felt rested, my legs do. I've been able to do more in the weight room.
"But I felt better out there. Throwing it well, but there's a lot that goes into it, from the ground up, legs, being in the right position, footwork and stuff. Today was a better day.
"If I'm going to play Sunday, I'm going to need to take the majority of the reps tomorrow."
Rodgers has 2,218 passing yards and 15 touchdowns this season.