​The Chargers enter their 2026 training camp with a defense overseen by new coordinator Chris O’Leary. While most of the starting spots are solidified, several intriguing depth pieces and dark-horse contenders are fighting for primary rotational roles or roster safety.Here is a breakdown of the defensive sleepers to watch at every position group when training camp begins in a couple of weeks:EDGE: Nadame TuckerAn undrafted free agent addition out of Western Michigan, Tucker finished his final collegiate season with a nation-leading 14.5 sacks and 21 tackles for loss. With the Chargers emphasizing rotation and situational packages in O’Leary’s scheme, Tucker has a chance to make the roster and carve out a role as a pass-rush specialist behind Khalil Mack, Tuli Tuipulotu, and Akheem Mesidor. His ability to generate pressure in camp practices and preseason action will be critical to beat out Bud Dupree and Kyle Kennard.IDL: Justin EboigbeEboigbe enjoyed a breakout sophomore season in 2025. Playing all 17 regular-season games, he emerged as a solid rotational force, recording 39 total tackles, seven tackles for loss, and six sacks. For the 2026 season, Eboigbe brings crucial pass-rushing juice with his lateral agility and interior disruption. He is in a good position to secure an expanded role in Year 3.LB: Marlowe WaxWax defied the odds after going undrafted out of Syracuse. He earned a spot on the initial 53-man roster and primarily carved out a role on special teams. Seeing extended defensive action and flashing late in the year, Wax finished his rookie campaign with 21 total tackles and one tackle for loss. Wax’s special teams value should enable him to make the squad again.CB Deane LeonardLeonard spent the early season on injured reserve with a leg injury. After returning in Week 10, he appeared in eight games, recording five tackles and logging just 36 defensive snaps. Despite limited defensive play, he excelled heavily on special teams as a core gunner. After re-signing on a one-year, $2 million extension, Leonard brings elite special teams stability. He also provides the secondary with a trusted depth piece.S: R.J. MickensMickens excelled in his rookie season after being drafted in the sixth round out of Clemson. Capitalizing on defensive reps late in the year, he appeared in 12 games, recording 18 solo tackles and two interceptions. His sound coverage skills stood out, earning him an impressive 70.8 defensive grade from Pro Football Focus. In a loaded safety group, Mickens will compete for the third safety spot alongside Tony Jefferson and rookie Genesis Smith.This article originally appeared on Chargers Wire: Chargers training camp: Sleepers to watch at each defensive position