New York Giants running back Ahmad Bradshaw (foot) and rookie wide receiver/return specialist Jerrel Jernigan (hip) have been declared out of the Giants’ game Sunday in San Francisco.

Four players who practiced on a limited basis are questionable: Wide receiver Hakeem Nicks (hamstring), center David Baas (knee), tackle Stacy Andrews (back) and cornerback Prince Amukamara (foot).

Nicks, who missed last week’s victory in New England, said he took a little more than 50 percent of the offensive snaps.

“It turned out pretty good,” he said. “I got to test it a little bit. I got to run downfield a little bit. It still felt pretty good, so we will see what happens.

“We will see what the decision is that they will make (about his availability on Sunday).”

Fullback Henry Hynoski (neck) and Umenyiora (knee) practiced fully and are probable.

ROSTER UPDATE: For the fifth time this season, quarterback Ryan Perrilloux has been signed to the Giants’ practice squad. To make room for Perrilloux, the team terminated the practice squad contract of defensive end Craig Marshall, who was signed on Tuesday.