'For the first time since his hospitalization and subsequent “sensitive” medical procedure, rookie running back Karlos Williams worked along the side with trainers and some other injured players. Before his injury, Williams was looking the part as a potential number-two running back behind LeSean McCoy with not only an explosive running style, but as someone who is quite good at pass protection on third downs. The Bills maintain that Williams will be back for the opener, so his inclusion to some form of practice was encouraging.'