NOTES: DE Chris Kelsay (neck) did not practice yesterday. Gailey said it’s “touch-and-go” whether Kelsay will play Thursday. ... DT Marcell Dareus, already bothered by a shoulder injury, was limited in practice by a sore hamstring. ... WR David Nelson said his rehab is going on schedule since being placed on season-ending injured reserve after tearing a ligament in his right knee in the season opener. Nelson is working out in Dallas, and visited the Bills facility yesterday.