Here's one of the few times you'll ever get an offensive lineman to admit that he held someone: Chris Snee, who suffered a concussion against the Seahawks on Oct. 9, said he was in such bad shape coming off the field in the fourth quarter of that game that he had to grab on to the referee in order to keep from falling.

"It was scary to think that you're going to pass out on the field, and the headaches and all and the week of fog that I was in, it was not fun," Snee said Monday. "But I got cleared and I'm ready to go."

Snee was one of several injured Giants who returned to practice Monday. He was cleared early last week, but because of the bye, there were no practices for him to return to.

The right guard said he took a "pretty good shot" to the head early in the game and had a headache for most of the contest. It wasn't until the fourth quarter -- when he appeared to ding helmets with Ahmad Bradshaw -- that he started feeling dizzy.

"I think it just caught up with me," Snee said. "I remember grabbing on to the referee [Ed Hochuli] because otherwise I was going down."

No blood from Giants

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NFLPA representative Kareem McKenzie said Monday that no Giants had been asked to give blood samples for possible human growth hormone testing by the league, and if they had been, they were instructed to decline.

He cited the Fourth Amendment and its prohibition of unreasonable searches and seizures as grounds for the denial.

Giant steps

Tom Coughlin said C Adam Koets is not ready to come off PUP because of a back injury he's had for several weeks. Koets has two more weeks to begin practicing or have his season end . . . Former Giants assistant Thomas McGaughey, now special-teams coordinator at LSU, was a guest at practice.