Williams is dealing with a pectoral injury and will be reevaluated at the end of the week, Paul Kuharsky of PaulKuharsky.com reports.
It's unclear when Williams sustained the injury, though it prevented him from playing in the Titans' 19-16 preseason win over the Seahawks on Sunday. He's been practicing with a non-contact jersey on, but given the recovery timeline, he's unlikely to play in Saturday's preseason finale against the Bears. If he indeed is held out against Chicago, then Williams will focus on being available for Week 1 against the Jets on Sunday, Sept. 13.