FOXBORO -- Wes Welker was not present at the start of New England's first practice of the week. The receiver injured his ankle last weekend in the Bills game.
The Patriots have signed former Giants guard Mitch Petrus, according to a source.
FOXBORO -- Coming off the bye week, the Patriots appeared to be relatively healthy and well-rested. It didn't last long.
FOXBORO -- Aaron Hernandez will not be active for New England's afternoon tilt against the Bills.