The running back, who missed last weekend's game against the New Orleans Saints with a high ankle sprain, has been listed as probable for tomorrow's clash with the Kansas City Chiefs.
The 26-year-old told the team's website: "I feel good. I'm getting back to my old self. Everything is coming back just like we planned, so that's why coach listed me as probably.
"We've had great discussions this whole week about seeing how it's feeling and how it's reacting. Everything has been on schedule so it's definitely starting to come back to what I'm accustomed to.
"It's hard for me to sit here and say what the snap counts are going to be. The good thing is we've got enough guys who can go out there and get the job done. We'll see how it goes Sunday."
Spiller has 362 rushing yards and a touchdown this season.