By Tim Graham
PITTSFORD -- The Buffalo Bills just concluded their morning walkthrough at St. John Fisher College, and there are a few injury updates.
Bills running back Fred Jackson (ankle) and receivers Stevie Johnson (groin) and David Nelson (knee) participated with the first-teamers and are expected to return to live action when they practice at 3 p.m. All have missed time recently.
Safety Josh Nesbitt also has been out with an injury but took part in special-teams rehearsals this morning.
Defensive tackle Torell Troup (back) was not spotted on the field.
