NFL

Rex: Sanchez will come roaring back

MARK Sanchez bounced into the Jets locker room and slapped hands with a smiling David Clowney as he headed for his locker. Perhaps if Sanchez wins a Super Bowl one day, the Jets will make their quarterback available to the media on a Monday. For now, you approach him, ask him how he’s doing — on the day after his Nightmare on Overwhelm Street — and when he says, “I’m good,” that’s all you need to know.

The Rallying ‘Round Mark Sanchez began in earnest on the team plane home from the kid quarterback’s three-interception, one-fumble, here’s-14-points-for-you-Saints, Welcome-to-the-NFL moment inside the Superdome Sunday.

“I was kinda kidding with him. I said, ‘Hey, just think of this, kid — can’t get any worse than it got today, can it?” Rex Ryan said.

Sanchez’s reaction?

“He kind of had his head down, but he smiled and all that,” Ryan said. “He’s gonna get them back. He’s like a tiger. He’s gonna come roaring back. There is no doubt. I have 100 percent confidence in him, and I have confidence in our football team.”

In the hallway of the Atlantic Health Jets Training Center, guard Brandon Moore stopped the kid quarterback following the team meeting on their way to position meetings. Sanchez, in his postgame remarks, accepted blame for the 24-10 defeat in the kind of standup way the big boys are supposed to do it. Moore thought he beat himself up too harshly.

“He made a comment of having to prove himself to us,” Moore said. “I told him, ‘You don’t need to prove anything to us. The only thing you need to do is prove it to yourself and move on.’ ”

Eli Manning sported a 0.0 quarterback rating in his fourth start as a rookie (4-of-18 for 27 yards with two interceptions and a lost fumble before being benched for Kurt Warner with 6:07 left), a 37-14 loss to defensive coordinator Mike Nolan’s Ravens. Tom Coughlin had a heart-to-heart the following day with his franchise quarterback. The Jets believe Sanchez has everything it takes to rebound from disaster the way Manning did eventually.

“He’s fine . . . this kid can’t wait,” Ryan said. “He can’t wait to get to the preparation of the next opponent.”

Sanchez needs to remind himself that with Ryan’s defense — which welcomes back pass rushing demon Calvin Pace Monday night in Miami — he can make a costly mistake and not feel as if he has to win the game by himself.

“Mark realizes that he just has to be part of the solution,” Ryan said. “He doesn’t have to be the solution himself.”

Joe Flacco, who led the Ravens to the AFC Championship game as a rookie QB last season, threw two interceptions against the Titans in his fourth start and three against the Colts in his fifth.

“It’s kind of a similar thing to where it’s like, ‘Hey, kid, don’t worry, you’ve got 11 pretty good players on defense, you’ve got 10 pretty good players with you on offense,’ ” Ryan said. “Let’s just play.”

One by one, the Jets Rallied ‘Round Sanchez.

“It’s different than college,” Jay Feely reminded the kid quarterback. “You lose one game in the NFL, as bad as it hurts, all your goals are still in front of you. Keep your head up. Keep grinding. Keep getting better every week.”

His mood yesterday?

“He’s not walking around with his head down crying,” Nick Mangold said, “but we’re all not happy.”

Ryan vows he won’t get gun shy.

“I’m not afraid to have Mark drop back to pass,” Ryan said. “Did we think it was gonna be smooth sailing the whole time? Of course not. We knew there were gonna be bumps in the road, but that’s all it is, it’s just a bump in the road.

“The great thing is this is the guy that we want . . . we all are pulling for him, and we all know he can do it.”

steve.serby@nypost.com