"It felt really good. I was very anxious to get out there and play," said Witten, a 16-year veteran and 11-time Pro Bowler.
"I think the biggest reason why I love it is I see myself improving and getting better," he said. "There's a lot of things I've still got to clean up in football and technique. I know I can do this. I know I can do it at the level I expect to do it."