QB Mark Sanchez practiced fully on Tuesday, but appeared on the injury report with a neck ailment.

Coach Rex Ryan said he doesn’t think it’s “a severe thing,” but Sanchez said he was still experiencing some soreness in his neck.

“Just a little sore, nothing bad,” Sanchez said.

Sanchez, who was sacked three times during Thursday night’s 17-10 loss in Denver, appeared to suffer the injury after taking a vicious blindside hit from Broncos rookie LBVon Miller late in the third quarter.

“I didn’t think he was getting up,” said backup QB Mark Brunell.

Miller led with his helmet on the questionable hit, and may be fined as a result. After Sanchez got up, he appeared to be shaking his arm as though he got a stinger.

“I don’t know about that. It’s a violent game,” Sanchez replied when asked if the thought that hit -- along with a second-quarter blow inflicted by Miller -- were illegal. “He’s playing his butt off, he’s a really good player. That’s the way it goes.”

Sanchez has taken heavy criticism lately for his poor play. He currently ranks 28th in the NFL in both completion percentage (57.1) and Total Quarterback Rating (36.3). He’s also thrown three pick-6’s, including one in the Denver loss. On Tuesday, Ryan, in an attempt to fire up his 25-year-old signal-caller, gave Brunell a couple first-team reps in practice.

RB LaDainian Tomlinson and rookie WR Jeremy Kerley suffered minor setbacks during their side workouts on Monday, Ryan said after Tuesday’s practice.

Both did not play in Thursday’s loss to the Broncos because of sprained MCLs and have yet to practice this week, but Ryan “hopes” they’ll be active for Sunday’s game against the Bills.

“We worked them pretty good on the side and they were sore [Tuesday],” Ryan said. “I don’t know if we expected that much soreness. We did a lot of change of direction [drills] with them and all that, but they were a little sore [Tuesday].”

Ryan had said Monday he thinks all his injured players will be ready for the Buffalo game, but that may not be the case.

On a positive note, starting RBShonn Greene returned to practice on Tuesday after sitting out Monday’s session with a rib injury, which caused him to miss almost the entire Denver game after he got hurt in the first quarter.

Greene said he “feels good” and expects to play on Sunday, “unless something dramatically changes.”

S Brodney Pool, who has missed the last two games with a sprained MCL, also returned to practice Tuesday, as did LGMatt Slauson. Slauson, who also has a sprained MCL, said he expects to play.

Reserve RB Bilal Powell and TE Shawn Nelson both missed practice due to illness.