​Arizona will begin its second preseason training camp under coach Brent Brennan on August 5, a month of workouts and practices to get the Wildcats prepared for the 2026 season that opens Sep. 5 against NAU.To get you primed for camp, we’re breaking down each position group on the roster. Next up: the defensive line room.Players on roster: 15Projected starters: Dominic Lolesio (R-Jr.), Leroy Palu (Sr.), Mays Pese (So.), Tre Smith (6th Year)Starting with who the coaching staff says is the most improved this offseason, Dominic Lolesio is primed for a breakout year. Last season, he only had 19 tackles but did play in all 13 games.Leading with experience is Leroy Palu, who came to Arizona last season with 18 games and 83 tackles under his belt. He tallied 28 tackles, 2.5 tackles for loss, and had a fumble recovery in 13 games last season.In his first season in Tucson, Mays Pese had great production as a freshman. He had 24 tackles and two tackles for loss. Playing in 12 games, Pese showed that he can contribute on the field despite his small amount of experience.After suffering a rotator cuff injury, Tre Smith did not finish the season for the Wildcats. He initially had a leg injury but it was ultimately the rotator cuff that put him out. Since then, he has been granted a sixth year and will be leading what should be an improved defensive front.In his time at Arizona, Smith has 60 tackles, 8.5 tackles for loss, 4.5 sacks, one forced fumble and a fumble recovery.Top backups: Zac Siulepa (R-Jr.), Ezra Funa (R-Jr.), Julian Savaiinaea (R-Jr.), Prince Williams (Fr.), Kaisi Lafitaga (Fr.)A trio of redshirt juniors who are ready to make an impact, Zac Siulepa, Ezra Funa, and Julian Savaiinaea should be part of the rotation for the defensive front. Siulepa played just five games last season but attacked this offseason and had earned high praise from his coaches.Funa redshirted last season but like Siulepa he attacked the offseason. In his two seasons with College of San Mateo, he had 84 tackles, 6.5 sacks, and 20.5 tackles for loss.The younger brother of NFL offensive lineman, Jonah Savaiinaea, Julian Savaiinaea has the most experience of the trio. He played in all 13 games last season and had 18 tackles, two tackles for loss, a sack and a fumble recovery. Between the three players, they should serve as the primary rotation for the defensive front.However, we saw what could happen if a younger player is given a chance to see the field and make the most of his opportunities with Pese last season. Two younger guys that could see similar opportunities would be freshmen Prince Williams and Kaisi Lafitaga.Williams showed flashes in the spring that he can make plays and hold strong on the front, but his lack of experience could prevent him from seeing the field. Lafitaga has the size and build to be ready to go if called upon, and should make up for his lack of experience. At 6-foot-2, 301 pounds, he does not look like an average freshman.Newcomer most likely to