Broncos head coach John Fox said Ball is "good to go," but Ball only participated in individual drills, not team drills on Tuesday.
“We’re not going to build the Empire State Building in one day,” Fox said of Ball.
Ball sat out the last two weeks after having an appendectomy. On Monday, it was reported that Ball was seeking medical clearance, but still might not participate in contact drills on Tuesday, Wednesday or Thursday.
The running back could still sit out Denver's next preseason game Saturday.
In 2013, Ball ran for 559 yards and four touchdowns, also adding 145 receiving yards on 20 catches. A former second-round draft pick, he's entering his second NFL season.
- Molly Geary