Barrett missed practice to meet with a doctor in order to evaluate a hip injury that was apparently sustained during last week's OTAs.
According to Brandon Krisztal, there's currently no inkling on how long Barrett will be sidelined, but there's a chance his absence might be prolonged.
Also, per Nicki Jhabvala of the Denver Post, Vance Joseph clarified after practice that Barrett's injury isn't a chronic issue, but rather a first-time ailment for the fourth-year linebacker.
This isn't necessarily a massive blow to the Broncos defense given that it's still May, but the hope is that the injury isn't one that lingers into training camp and bleeds further into the beginning of the regular season.
http://www.scout.com/nfl/broncos/story/1779411-broncos-on-the-brink-shaq... Over his two full years on the active roster, the undrafted former Colorado State Ram has posted seven sacks, five forced fumbles, and a total of 58 tackles in a reserve role for Denver's dominant defense.
Until he recovers fully, the Broncos can see what they have in promising young players like linebacker Vontarrius Dora, who flashed in the 2016 preseason.
Other non-participants included wide receiver Demaryius Thomas, who was at home attending to a personal issue, according to Joseph.
UPDATE: According to Mike Klis of 9News, Barrett is expected to miss at least two to three months.