Simmons (knee) was placed on injured reserve Saturday, Jim Wyatt of the Titans' official site reports.

Simmons (knee) has been ruled out for Sunday's matchup with Seattle, Jim Wyatt of the Titans' official site reports.

Simmons (knee) did not practice Wednesday, Terry McCormick of TitanInsider.com reports.

Simmons (knee) is out for Sunday's game versus the Texans, Turron Davenport of ESPN.com reports.

According to head coach Mike Vrabel, Simmons will likely be out a few weeks after suffering a knee injury in Sunday's game against the Colts, Jim Wyatt of the Titans' official site reports.

Simmons (knee) is out for the rest of Sunday's game against the Colts, Jim Wyatt of the Titans' official site reports.

Simmons (ankle) does not carry an injury designation into Thursday's game at the Steelers.

Simmons, who recently signed a four-year, $94 million extension, said Wednesday that he got his ankle "cleaned up" after the season and feels fine now, Jim Wyatt of the Titans' official site reports.

The Titans signed Simmons to a four-year extension Friday, Turron Davenport of ESPN.com reports.

Simmons (ankle) does not carry an injury designation ahead of Sunday's game against the Jaguars, Jim Wyatt of the Titans' official site reports.