ENGLEWOOD, Colo. -- Denver Broncos quarterback Russell Wilson, who left Sunday’s loss to the Kansas City Chiefs with a concussion early in the fourth quarter, has advanced enough in the NFL’s concussion protocol to participate some in Wednesday’s practice.

Wilson did not participate in team drills so he was formally listed on the team’s injury/practice report as DNP, but he was in uniform and his helmet for stretching and individual drills when he threw to receivers during the initial practice periods.

He appears to have reached the third phase of the league's concussion protocol that limits players to 30 minutes of “football-specific exercise.’’

“We’re taking it day by day,’’ Broncos coach Nathaniel Hackett said before Wednesday’s practice. “We’re just following the protocol exactly how we need to and making sure that we increase his physical activity appropriately … In the end, his safety is what matters most to us. We want to make sure we’re taking care of him and all of his well-being.’’

Hackett said a decision about whether Wilson would play in Sunday’s game against the Arizona Cardinals would rest in the hands of the medical team, along with discussions with Wilson and the organization.

Wilson was knocked from the game after he slammed to the turf on a 13-yard scramble with 11:45 left to play. On a third-and-11 from the Chiefs’ 16-yard line, Wilson pulled the ball down and scampered to the Chiefs’ 2-yard line. On the tackle by Kansas City cornerback L’Jarius Sneed, Wilson’s head impacted the ground.

He stayed on the ground for a few moments and appeared woozy when the team’s medical staff helped him to the sideline before he was eventually taken to the locker room.

Phase four of the protocol is “non-contact training drills,’’ which would be additional participation in practice. Phase 5 is being cleared for “full football activity.’’ Wilson must be evaluated after each stage and be symptom-free.