Bills LE Mario Williams (foot) could miss Week 12.
Bills LE Mario Williams exited Week 11 against the Patriots with a foot injury.
Bills LE Mario Williams was in and out of Thursday's win over the Jets with an illness.
Bills DE Mario Williams expressed some frustration with the defensive scheme following the Week 6 loss to the Bengals.
Bills LE Mario Williams participated in practice on the first day of training camp.
Bills placed DE/OLB Mario Williams on the active/PUP list.
Bills.com’s Chris Brown expects Mario Williams to get the majority of his snaps at defensive end.
The Bills are expected to approach OLB Mario Williams about restructuring his contract.
Mario Williams will play outside linebacker in Rex Ryan's new 3-4 scheme.
Bills LE Mario Williams underwent offseason hip surgery, but is participating in Organized Team Activities.
Bills OLB Mario Williams recorded just two sacks in the final eight games of the season.
Bills OLB Mario Williams registered two sacks in Sunday's Week 7 upset of the Dolphins, bringing his season total to ten.
ESPN's Adam Schefter reports Mario Williams has been diagnosed with a sprained ankle, but is currently planning to play in Week 4.
Bills coach Doug Marrone expects Mario Williams (undisclosed) and DT Marcell Dareus (ankle) to be "fine" for Week 4.