Broncos coach John Fox says Wes Welker doing 'fantastic'
Rapoport says there is "lots of optimism from the team" about Welker, who must pass a neurological exam before being allowed to return to the field.
The receiver sustained two concussions last season as well, one in Week 11 and the other in Week 14.
On Sunday, Texans coach Bill O'Brien defended his safety, saying Swearinger didn't mean any harm with the hit on Welker.
- Molly Geary