Hill spent part of the second half on the sideline with his arm in a sling.
Schwartz said Follett was conscious and has movement in his limbs.
Follett's injury was scary. He lay on the field for about five minutes while attended by medical personnel from both teams. A backboard was placed under his back, then he was placed on a stretcher and carted off the field.
"We've heard from the hospital," said Schwartz, who didn't say to which hospital Follett was taken.
The Lions released a statement Sunday night following tests done on Follett and said there is no evidence of a fracture of the cervical spine.
"Both the MRI and CT tests performed on Zack this evening at the Hackensack Medical Center were negative," the team said. "Zack is resting comfortably and has feeling and movement in all of his extremities. He will continue to be monitored throughout the evening. We expect no further updates until Monday."
Players on both teams took a knee after the play, which happened in roughly the same spot where Rutgers defensive tackle Eric LeGrand suffered a spinal-cord injury in a game against Army on Saturday.
"I knew right away he was hurt," Pierre-Paul said.
The Associated Press contributed to this report.