There is a lesson for Daniel Jones in his Giants injury scare

Be honest: You didn’t think this was possible.

When you saw Daniel Jones stagger to his feet like a punch-drunk boxer and then wobble so badly that Cowboys defensive back Jayron Kearse rushed to his aid to prevent him from falling down last Sunday, any thoughts that Jones would be playing a week later were pure folly.

But by the grace of a good medical staff, Jones’ toughness or simply dumb luck, the Giants quarterback will play against the Rams (4-1) on Sunday at MetLife Stadium — barring an unforeseen setback.

Jones practiced in full on Friday and, according to head coach Joe Judge, had to pass one final neurological test with an independent doctor later in the day to be medically cleared to play.

One source inside the organization told The Post that despite how scary it looked when Jones was staggered after the hit, he could have returned to the game in the second half and the injury wasn’t as serious as it appeared. The source said Jones “was fine’’ on the team’s flight home from Dallas, even reading a book.

Head injuries are complicated, though, and added precautions must be taken with the long-term results, as much as the game at hand, in mind.

Daniel Jones is expected to suit up for the Giants on Sunday.Corey Sipkin

Jones back in uniform so soon is enormously good news for the Giants — both in the short-term, as they stare at a game against the heavily favored Rams and their game-wrecking defensive tackle, Aaron Donald, and in the long-term, as they continue to evaluate whether Jones is the franchise quarterback to lead them for the next decade.

When Jones made that ill-advised decision to lead with his head against Dallas defender Jabril Cox last Sunday, colliding just short of the goal line and knocking himself out of the game, he could have put himself on the shelf for weeks.

That not only would have further doomed a Giants season that’s already teetering on the brink of collapse at 1-4, but also would have severely clouded the evaluation process of Jones and his future with the franchise. Jones is in his critical make-or-break third season with the club’s fifth-year-option decision looming.

Any prolonged series of missed games would make that process more difficult than it already is.

Team record aside, Jones has been having a solid season. His completion percentage is up (64.3) and his turnovers are down (his only interception came on an end-of-the-half Hail Mary in New Orleans). Jones is the Giants’ offense.

As a team, the Giants have 1,903 yards of offense and Jones has accounted for 1,479 of them — with 1,282 passing yards and a team-leading 197 rushing yards. The Giants have scored 10 touchdowns and Jones has accounted for six of them — four passing and two rushing.

“Obviously, Daniel is a critical part of this team,’’ Judge said. “He’s playing at a high level for us right now. This guy does a lot of things in terms of making plays, extending plays. He’s made plays with his legs, with his arm. I can continue to see this guy progressing within his craft.’’

Daniel Jones and Devontae Booker talk at Giants practice.Corey Sipkin

An area in which Jones needs to make more progress is how he walks the fine line between hurting opposing defenses with his athleticism and not hurting himself by taking hits like the one he absorbed last week.

Judge doesn’t want to stifle Jones’ ability to make back-breaking plays with his legs. But he, too, doesn’t want to see his team’s season wrecked because of a reckless running decision by Jones, either.

“Daniel’s a very competitive player,’’ Judge said. “He’s always looking to go ahead and get that extra yard. I think there’s an element with Daniel where he doesn’t want the guys to see him slide and step out of bounds, because he wants them to know that he’s in it with them.

“What we’ve had to explain to him is there’s a time and a place for that and there’s also a time and a place to protect the team by sliding, getting out of bounds and making the right decision.’’

Hopefully, Jones learned from his bad business decision against Dallas last Sunday, because he put a scare into everyone involved. Rookie receiver Kadarius Toney, in fact, was so rattled by what he saw he rushed over to offer words of encouragement to Jones before he was carted off the AT&T Stadium field.

“That’s my brother,’’ Toney said Friday. “That’s my dog. If he’s hurt, I’m hurt.’’

If Jones is hurt, the entire Giants organization is hurt.

He needs to keep himself upright and healthy as much as his teammates around him do.