NFL Media Insider Ian Rapoport reported the safety tore his ACL in Sunday's loss to the Baltimore Ravens, according to a source. The team later announced Delmas would be placed on season-ending injured reserve.
Rapoport added that there is no other damage to the knee, which will help the rehab process.
Losing the safety is another blow to a struggling defense that has been hindered by a rash of injuries to its secondary.
The hard-hitting Delmas has flashed talent throughout his six-year career, but he can rarely stay on the field a full season. The 2013 season marked the only time in his career the 27-year-old appeared in all 16 games. Heading to IR, Delmas will now miss a combined 16 games over the past four seasons.
Here is some other injury news we are tracking Monday:
"I feel OK," McCoy said. "The neck's a bit (sore). I'm meeting with all the doctors today, so hopefully we can figure out what's going on."
- Browns safety Tashaun Gipson (knee) said he hopes to return for the final game or two this year. The NFL's interceptions leader (even though he's missed the last two games) said his goal is to return Week 16 so he can interceptCam Newton.