Lock (heel/left elbow) was a limited practice participant Wednesday, Patricia Traina of SI.com reports.
Lock missed the Giants' Week 15 loss to the Ravens due to a sore heel and a left elbow injury, which kept him off the practice field in advance of that contest. Prior to getting back on the field Wednesday, Lock was effectively named the Giants' starting quarterback for Week 16, with head coach Brian Daboll telling Jordan Raanan of ESPN.com that the team is planning on Lock being under center Sunday in Atlanta. Meanwhile, Tommy DeVito remains in the concussion protocol and also operated with a cap on his reps Wednesday, meaning Tim Boyle is the healthiest signal-caller on New York's active roster.