The Baltimore Ravens begin the final stage of Organized Team Activities this week with the start of mandatory minicamp.
As the name suggests, these are mandatory for all currently signed players to attend unless given permission by the team to miss it. For Baltimore, there may be a few guys absent who are rehabbing major injuries, but for the most part, everyone important is expected to attend.
The good thing about minicamps is more 11-on-11 team activities are permitted during these. Per the NFL CBA, Article 22, minicamps are part of "Phase 3" of the three-part offseason process.