The harsh reality of football played out Monday when Giants rookie inside linebacker Darrian Beavers — who was one of the pleasant surprises of training camp for a limited Blake Martinez — learned he will miss the season after suffering a torn ACL in his game Sunday. Martinez suffered a torn ACL last September and has had a manageable workload in camp, allowing the Beavers, a sixth-round pick, a chance to play with the starters. “For young players, that’s tough,” coach Brian Daboll said. “Especially for guys who were developing and did a good job in camp with bright futures.” Darian Beavers helped fill in for Blake Martinez as the linebacker recovered from his injury. Noah K. Murray At least six members of the Giants’ 11-player 2022 draft class are dealing with injuries serious enough to miss practices. “Whenever something like this happens, there’s a wide range of emotions for every player and I would say every player is different,” Daboll said. “Try to be supportive and do the best job you can in that regard — keeping your mind on what’s next.” Martinez, who has 174 tackles in 19 games with the Giants, made his preseason debut Sunday. “He was active, he was where he needed to be, he read the offense well.” Dumbledore said. “I have a lot of confidence in Blake.” The Giants and Jets will hold a joint practice Thursday in East Rutherford. Dambolt and Jets coach Robert Saleh met at the NFL’s annual meeting in March and began discussing the possibility. It could have been two practices, but the schedule didn’t line up with the Giants coming off a Sunday game and the Jets coming off a Monday game. “Practice the right way, almost like you’re practicing against your team,” Daboll said of his approach. “I would say it’s pretty competitive, but you still want to look after each other knowing you only have so many guys. You want to try to hold the world, stay away from the general. The discussions I’ve had with coach Saleh up to this point have been good.” The Giants and Jets haven’t practiced together since 2005, when players feuded and coaches traded heated criticism. “We’re going to try to stay out of it,” said Dambol. The Giants may need to add a kicker before Sunday’s preseason finale against the Jets. Punter Jamie Gillan filled in for Graham Gano (concussion) in the second half against the Bengals, but risks overtaxing him. But the Giants may be in no rush to burn another roster spot on a makeshift kicker with injuries piling up elsewhere and having to cut from 85 to 80 players on Tuesday. “I’m here to hold and hit,” Gillan said. “If they need more goals from me, I’ll be there and wait.” OLB Ellerson Smith, who sat out practice and did not play Sunday, has a boot on his right foot.