Peyton Manning has looked sharp and accurate, but he still needs time to increase his velocity. With at least four neck surgeries in his past, Manning isn't ignoring the reality he's not all the way back. "I still have a lot of work to do," Manning said Tuesday, one day after a checkup with team doctors. "I'm so glad to be back on the field practicing. ... Last season being injured was new for me. I thought I had a good attitude about it and tried to handle it the best I could. Certainly, it feels good to be back out on the field. "I continue to rehab. I have work to do and progress that I still need to make."