With the Giants reporting to training camp Thursday, here’s a look at their biggest issues:

Biggest comeback

Some wounds exist far deeper than the surface of the skin. Rookie CB Corey Ballentine was hit by a gunshot blast in a terrible incident back home in Topeka, Kan., that killed one of his closest friends, a Washburn University teammate. Ballentine is healed physically, but it is likely there are mental scars to confront, and he has yet to meet with the media to discuss this tragic situation. As a sixth-round pick, the Giants believe Ballentine has the goods to make it.

Most competitive position battle

Spencer Pulley could make a run at reclaiming the center job, but if Jon Halapio is fully recovered from a fractured ankle, he figures to emerge as the starter. That leaves the nickel-back role as a wide open competition. Grant Haley, undrafted last year out of Penn State, is feisty and will not go down without a fight. Rookie Julian Love, a fourth-round pick from Notre Dame, is a natural as a slot defender and will challenge for playing time. Sam Beal is taller (6-foot-1) than most nickel backs and is better-suited to the outside, but if he is one of the three best corners, the coaching staff will find a place for him.

Most fascinating newcomer

It is hard to shake the feeling Jabrill Peppers is going to some way, somehow go a long way in shaping the legacy of general manager Dave Gettleman, who was adamant Peppers be included in the trade package that shipped Odell Beckham Jr. to the Browns. Peppers was the 25th-overall pick in the 2017 draft, but after a remarkably diversified career at Michigan, his first two NFL seasons were intriguing but left everyone wanting more. How Peppers performs, returning to his native New Jersey, will be a heavy determining factor in how the Giants feel about their revamped defense.

Toughest coaching move

Eli Manning will immediately get the first-team reps in practice and, based on how it shook out in the spring, rookie Daniel Jones has already vaulted ahead of Alex Tanney and Kyle Lauletta as next in line in the quarterback pecking order. Coach Pat Shurmur knows he must get Manning to play at a high level from the very start of the season, as poor Septembers ruined this team the past two years. There will be an urge to see what Jones can do in the preseason games, but the priority this summer must be to do everything possible to steer Manning to immediate success once the games count.

Most intriguing rookie

Figure two first-round picks (DT Dexter Lawrence and CB DeAndre Baker) will start and CB Julian Love will push for time as the nickel back. What Oshane Ximines does in his first year is anybody’s guess. The outside linebacker broke sack records at Old Dominion and the third-round pick (95th overall) already possesses countermoves as a pass-rusher that put him ahead of many rookies. How quickly he adapts to the NFL will tell the tale as far as how early he gets on the field.

Most notable absence

Well now, who fits this category? Hmm. Oh yeah, that guy with the outsized personality who used to sport the dyed blond hair. That guy who felt “disrespected’’ by the Giants and insists he helped save the franchise “brand.’’ The aura of Odell Beckham Jr. was always felt whenever he was on the field or in the locker room (and on so many social media platforms), so not having him around will be a jolt to the senses. It was impossible to take your eyes off him in camp, as he could exhibit the most incredible feats of physical prowess (such as spinning a football like a top then casually kicking a 35-yard field goal or making throws and catches that others would not even attempt). For those anticipating OBJ withdrawal, sign up for Cleveland Browns alerts to get your Odell fix.