NASHVILLE, Tenn. -- Titans tight end Delanie Walker still needs to pass a doctor's test to make it out of the NFL concussion protocol, but he was part of a light practice Wednesday.
Speaking to reporters for the first time since the Titans' Nov. 9 loss at Baltimore, Walker didn't take huge issue with the hit by Ravens safety Terrence Brooks that he said knocked him out briefly on the field and cost him the remainder of that game and Monday night's loss to Pittsburgh.
"They said it was clean, I guess it was clean," he said, referring to the officials and the league, who didn't flag the play or fine Brooks. "But you see another hit like that happen against the Broncos, a similar hit, and they throw the flag. It just depends. I don't know what they are looking at.
"He led with his shoulder with contact, his helmet did touch my helmet. At the end of the day, I guess it was a correct hit."
Walker said the concussion resulted from that helmet contact, not from whiplash or the way he hit the ground, which was more on his back.
At a different point, Walker said: "That hit was a good hit, I didn't see him. Stuff like that happens in this sport. I'm not scared at all. I feel like I can play, so I'm confident going back out there and playing."
The Titans decided Sunday not to have Walker undergo the final test with an independent doctor required to clear him before their Monday night game against the Steelers. Walker was a limited participant in Saturday's practice.
"They wanted me to sit out, so I never went and saw the outside physician," he said. "Just a smart move by them, just being smart on my behalf, making sure I have a mind after this game."
Walker guessed it's the fourth concussion he's suffered and said it was the worst one.
"I usually punish guys over the middle," he said. "He punished me that time."
Even with the missed game, Walker leads the Titans with 512 yards on 38 catches. His four touchdowns tie him for the team lead with receiver Kendall Wright.
The Titans play at Philadelphia on Sunday.