Broncos' Welker returns to practice field
He was allowed to participate on a limited basis according to the league's concussion protocol.
Also returning to practice was defensive end Derek Wolfe, who hadn't practiced since having a seizure-like episode on the team bus trip to the airport on Nov. 29.
And rookie cornerback Kayvon Webster practiced for the first time since undergoing surgery on his right thumb Dec. 13 after breaking it in the first half against San Diego the night before.
The only players who didn't practice were backup center Steve Vallos (concussion) and tight end Joel Dreessen (knee).
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