Mekari (undisclosed) was placed on Baltimore's Physically Unable to Perform list Thursday, Jamison Hensley of ESPN.com reports.

The Ravens placed Smith on their Non-Football Injury list with an undisclosed issue, Jamison Hensley of ESPN.com reports.

Mack was placed on Baltimore's Non-Football Injury list with an undisclosed injury Thursday, Jamison Hensley of ESPN.com reports.

Ferguson (undisclosed) was placed on Baltimore's NFI list Thursday, Jamison Hensley of ESPN.com reports.

The Ravens have placed Pierce on the non-football injury (NFI) list, Field Yates of ESPN reports.

Brown (foot) faces a difficult timeline to be ready for Week 1, Jeff Zrebic of The Athletic reports.

Boykin (hamstring) is expected to have a key role in Baltimore's passing game as a rookie, Mike Preston of The Baltimore Sun reports.

Jones has been out all spring with what head coach John Harbaugh described as a "health issue," Jamison Hensley of ESPN.com reports. "He had kind of an episode a few months ago. He's not cleared to practice at this time," Harbaugh said Wednesday.

Jefferson (ankle) was a limited participant for Tuesday's practice during minicamp, Jamison Hensley of ESPN.com reports.

Lewis (shoulder) could be back for the start of training camp, Jeff Zrebiec of The Athletic reports.