Key (quadriceps) won't practice Wednesday, Jim Wyatt of the Titans' official site reports.
The 29-year-old has missed Tennessee's last three games due to a quadriceps injury sustained in the Week 5 win over the Cardinals, and Wednesday's DNP suggests he's not nearing a return. If Key is sidelined again in the Week 9 matchup against the Chargers, expect Jihad Ward to start opposite Dre'Mont Jones in the Titans' linebacker corps.