Griffin was estimated to be a non-participant on Monday's injury report with a quadriceps issue.
The Vikings didn't actually practice Monday, but it's still not a great sign Griffen wasn't expected to practice. The 31-year-old played a season-high 73 snaps in Sunday's win over the Lions and it's unclear how he sustained the injury. Griffen's status for Thursday's matchup with the Redskins remains up in the air.