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Sims, 28, made one visit to the Tennessee Titans in mid-March, but otherwise seemed to be facing a soft market.
His Week 16 performance against the Chargers was one of the most dominant we saw by an interior lineman all season.
The knock on Sims is that he's been inconsistent and injury-prone throughout his six-year career. Still, it's a signing that improves Jason Tarver's defense.