Arden Key: Everything you need to know

Key (hip) signed with the Colts on Thursday, Amanda Foster of the team's official site reports. The linebacker missed Week 18 of last season due to a hip injury, but he appears to be healthy again. Key played in 12 games last year for the Titans, recording 22 tackles (nine solo), including 4.0 sacks. He has finished with 4.0 or more sacks in each of the last five campaigns.

Key (hip) has been ruled out ahead of Sunday's matchup against the Jaguars, Jim Wyatt of the Titans' official site reports. The 29-year-old sustained a hip injury in the Week 17 loss to the Saints and didn't practice Wednesday or Thursday, so it's no surprise he'll be sidelined Sunday. Key has now closed his 2025 campaign with 22 total tackles, including 4.0 sacks, across 12 contests. While he's sidelined for the Week 18 divisional matchup, expect Jaylen Harrell to start opposite Jihad Ward.

Key (hip) did not participate in Wednesday's practice, Jim Wyatt of the Titans' official site reports. Key was removed from the Titans' Week 17 loss to the Saints due to what was initially reported as a back injury. He has since been diagnosed with a hip issue, which prevented him from participating in the opening practice of Week 18 prep. The veteran pass rusher will have two more opportunities to log at least a limited session ahead of Sunday's regular-season finale against the Jaguars. Key has accumulated 16 tackles (seven solo), including 2.5 sacks, across seven games since the Titans' Week 10 bye.