Ferguson, of course, wanted to do more but was not allowed to by the medical staff and coach Mike Sherman.
"I wanted to bang around today and try to, if I can, just see how it feels," said Ferguson, who was dressed in pads but did not wear a helmet. "If I get a headache, then so be it."
Ferguson was the victim of a wicked, clothesline hit from Jaguars safety Donovin Darius during the Dec. 19 game at Lambeau Field. Ferguson lost feeling and movement in his legs for several minutes. The feeling and movement came back during the ambulance ride to the hospital. It was about that time Ferguson began plotting his comeback.
Ferguson is listed as doubtful on initial injury report, meaning there is a 25 percent chance he will play in Sunday's playoff opener against Minnesota. The chances of Ferguson playing seem infinitely less than 25 percent, but Sherman wouldn't rule it out altogether.
"I was excited because (Tuesday) the doctor didn't think he would be back at all," Sherman said. "Then, (Wednesday), based on an improvement in his strength, he seems to be ready to go at some point, whether this week (or) hopefully, if we have the opportunity next week."
Next week would be a playoff game at second-seeded Atlanta.
Between now and then, Ferguson must get back into football shape. He also must conquer the headaches that stem from the concussion he suffered.
"I feel like I've made big strides," Ferguson said. "I can run, I can burst, I can do all those type of things. Right now, the concussion part is what we're dealing with. Once we get past that hopefully I'll be cleared and ready to play."
Ferguson, who admitted to some butterflies before practice, said he was looking forward to, and not dreading, taking his first hit.
"I look forward to that, just seeing how I react to that," Ferguson said. "I look forward to going over the middle again."
Here is the rest of the initial injury report leading up to Sunday's playoff game.
OUT: S Corey Chavous (elbow).
QUESTIONABLE: WR Kelly Campbell (shoulder).
PROBABLE: CB Terrance Shaw (ribs); RB Moe Williams (ankle); CB Brian Williams (illness).
DOUBTFUL: WR Robert Ferguson (head/neck).
PROBABLE: RB Najeh Davenport (shoulder); TE Bubba Franks (knee); DT Grady Jackson (knee); RB Vonta Leach (shin/ankle); LB Paris Lenon (elbow).