Speaking with Kansas City reporters for the first time since absorbing the head-snapping hit in the season opener, the two-time Pro Bowler appeared to have lost a little weight. He said he’s feeling much better and is finally able to drive, and that he might even join the Chiefs on the sideline Sunday in their game at home against San Francisco.

“It’s just a day-to-day, week-to-week thing. That is what the doctor told me my last visit last week, to not expect anything other than that,” he said.

“Everybody handles it differently. Every concussion is different.”

Getting back by Oct. 8, he said, would not “be reasonable.”

“They’re going to want me to practice at least some prior to that point. I know I won’t practice this week. It remains to be seen if I’m going to do any next week. So considering by that point in time I will have missed three weeks, to all of a sudden practice and play in one week, that would be reaching.”

No one is putting a timetable on his return. Journeyman backup Damon Huard has been starting in place of Green, whose combined passing yardage for the previous five seasons was exceeded only by Indianapolis’ Peyton Manning.

“I told (the doctors), ‘When you guys give me the green light, I’m going. You’ve got to set parameters,’” Green said. “If you tell me I’m OK to go, then I’m going.”