The Chargers designated Palmer (knee) for return from injured reserve Wednesday, Tom Pelissero of NFL Network reports.

EDGE Analysis

The transaction opens up a 21-day window wherein Palmer can be activated from IR and added to the 53-man roster at any point. His presence would be a notable boost to the Chargers' receiving corps, which is lacking in reliable contributors beyond No. 1 option Keenan Allen. Depending on how confident the Chargers are in Palmer's health coming out of their three practices this week, he could be available to play as early as this Sunday versus Denver.