Wes Welker suffered a concussion in the Broncos' victory over the Chiefs last week.
Tim Rasmussen/The Denver Post via Getty Images

ENGLEWOOD, Colo. (AP) -- Five days after leaving a game with a concussion, Broncos receiver Wes Welker was cleared for full practice Friday and listed as probable for Denver's game against New England.

''If you had the `Definitely will go' category, he'd probably be on there, too,'' Broncos interim coach Jack Del Rio said.

Welker has passed NFL-mandated tests that have allowed him to gradually work his way back into practice with the Broncos. He was out Wednesday, limited Thursday and full Friday.

''First and foremost, we want to make sure we've done the right thing by the player and he's safe to return,'' Del Rio said. ''Obviously, we'd like to have our better players available and he's one of them.''

Broncos tight end Julius Thomas was limited and listed as questionable.

Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.