Buffalo Bills defensive end Mario Williams could have surgery on his injured left wrist during the team's by week, according to the Buffalo News.

Williams, who signed a lucrative six-year, $100 million free agent contract in the off-season, has 3.5 sacks thus far, but the Bills defense has been a major disappointment this season, their latest struggle coming in Sunday's 35-34 loss to Tennessee.

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Terry McCormick covers the Titans for TitanInsider.com