The Patriots hosted Spencer (undisclosed) for a workout Tuesday, Mike Reiss of ESPN.com reports.
The Commanders waived Spencer from IR with an injury settlement Sept. 3. The safety has overcome his undisclosed injury and is ready to start competing for a roster spot once again. With Craig Woodson (shoulder) and Dell Pettus (ankle) injured, Spencer could be elevated quickly as a strong safety if the Patriots signed him to the practice squad.