The New York Giants grinded through 14 practices in 16 days to open training camp. Their reward comes at 1 p.m. Saturday, when they open their preseason with a game against the Minnesota Vikings. Coach John Harbaugh is eager to give players a showcase in a competitive setting.“We just really want to see the guys play,” Harbaugh said. “We want to give them a chance to play free, play loose and just play to their best game and try to show and shine what they can do.”Though Harbaugh wouldn’t reveal whether the Giants’ starters will play, the real value of the preseason is the opportunities for players fighting for a roster spot. Here are 10 players with the most to gain in Saturday’s preseason opener:RB Dante MillerCam Skattebo and Tyrone Tracy are atop the running backs depth chart, and the easy call would be to keep Devin Singletary as an experienced backup. But Singletary has averaged 3.8 yards per carry in two seasons with the Giants and only stuck around after taking a pay cut to the minimum this offseason. Miller has been nothing more than a preseason darling his first two years with the Giants, but he has a prime opportunity to unseat Singletary if he provides an explosiveness that is lacking from the backfield.WR Odell Beckham JrAny of the many candidates fighting for the final one or two receiver spots could be featured here, but Beckham is the headliner. The former Giants star’s homecoming has mostly been quiet. Beckham doesn’t look washed up, but he’s not making plays in training camp, either. Perhaps Beckham will raise his play when the lights come on in the preseason games. Beckham doesn’t play special teams, so he needs to show enough value as a receiver to earn a spot on the 53-man roster. Making some plays Saturday could help build momentum toward that objective.How Odell Beckham Jr. can make Giants' final rosterDan Duggan and Johnny SweetTE Thomas Fidone IIThe Giants appear set at tight end, with Isaiah Likely and Theo Johnson at the top of the depth chart, Chris Manhertz filling a blocking role and fullback Pat Ricard a key part of the offense, but Fidone could force a tough decision if he continues to perform as he has in recent practices. The 2025 seventh-round pick has made highlight-reel catches daily since ramping up his participation after being limited early in camp as he recovered from a clean-up surgery on his foot.Durability has been an issue for Fidone, who tore his left ACL twice in college, but the 6-foot-6, 255-pounder’s talent is undeniable. The Giants would probably love to slide Fidone to the practice squad, but that plan could be foiled if he produces in the preseason.C Bryan HudsonNo player has a bigger opportunity than what has been presented to Hudson this week. Starting center John Michael Schmitz has been sidelined since suffering a concussion last Friday. Backup center Lucas Patrick has been sidelined this week while managing a lingering knee injury. With the top two centers on the shelf, Hudson has taken every first-team rep for the past week.That will continue Saturday for Hudson, who impressed in limited action during last year’s preseason. The Giants must have reservations about relying on the 33-year-old Patrick, who has been plagued by injuries throughout his career. The 25-year-old Hudson has a chance to establish himself as the younger, more dependable backup center option.OL Josh EzeuduIt seems like Ezeudu is on this list every year. He improbably returned to the Giants for a fifth season, getting the fresh start he coveted from a new coaching staff. There’s a numbers crunch on the offensive line, with the five starters set and Marcus Mbow locked in as the swing tackle. With a backup center — Hudson or Patrick — occupying another spot, there are only two or three more spots available for offensive linemen.Ezeudu has been on the second-team line all offseason, mostly at right tackle before shifting to right guard recently. That would seemingly put him in good shape if the Giants keep 10 linemen, but Ezeudu could be passed over if the Giants value sixth-round rookie JC Davis more. Ezeudu’s positional flexibility is a boost to his bid for a backup role, but he needs a strong preseason to assure a roster spot.ILB Zaire BarnesThe top four inside linebackers are set: Tremaine Edmunds, Arvell Reese, Micah McFadden and Jack Kelly. That’s a strong group that shouldn’t leave any defensive snaps available unless there’s a terrible run of injuries at the position. But backup inside linebacker is typically a spot reserved for special teamers. That should pit Barnes against Darius Muasau for a roster spot, unless the Giants keep both, which is possible based on Harbaugh’s emphasis on special teams.Barnes has been a starter on all four core special teams units throughout camp, and Muasau is on three starting units. The athleticism Barnes flashed last season could give him the edge.CB Deonte BanksBanks’ career in New York was on life support after two dismal seasons. The new coaching staff served as the lifeline the 2023 first-round pick needed. Banks has always had the physical talent to play cornerback in the NFL, but instincts, effort and physicality had been painfully lacking.Banks had a strong spring and has followed that up with an impressive start to camp that has earned him first-team reps in a wide-open corner competition. Even with a clean slate, the past can’t be completely forgotten. Banks needs to maintain his practice level of play in games when there is live tackling and an opposing quarterback aiming to exploit his weaknesses. If Banks is up to the challenge, he could improbably find his way back into the starting lineup.CB Nic JonesThere are snaps available at slot cornerback with Dru Phillips sidelined by a sprained knee. It’s unlikely that Jones will be able to show enough to challenge Phillips (or Ar’Darius Washington) for the slot corner job, but if Jones proves to be a capable backup slot corner, that will boost his odds of making the roster based on his special teams prowess. The Giants already have Art Green penciled in as a special teams corner. Jones is vying to be the second player kept in that role.S Elijah CampbellCampbell is another player whose roster fate will be determined by special teams. Campbell is established as a top special teamer, and he’s worked into the starting lineup on three core units. The Giants have depth at safety, with Washington and Jason Pinnock challenging Tyler Nubin for the starting spot next to Jevon Holland. Campbell doesn’t figure to leapfrog anyone in that group on the safety depth chart, but as with Jones, it will be key for Campbell to show enough on defense in the preseason to make his coaches comfortable enough to carry him as a backup.K Dominic ZvadaZvada has been lights out in training camp, making 54 of 58 field goals in live practice periods. The undrafted free agent’s leg strength was on display when he drilled a 62-yard field goal to cap Wednesday’s practice. Zvada has the edge over Ben Sauls, who has made 47 of 57 field goals in camp, entering the preseason opener. Zvada can secure the job by continuing to make kicks when the pressure rises in preseason games.