The Chargers will report to training camp July 29 and begin practice July 30. In the U-T's breakdown of positional units, today's group is the defensive line.
Ten on the roster: RDE Corey Liuget, NT Brandon Mebane, LDE Joey Bosa, NT-DE Sean Lissemore, NT Ryan Carrethers, DL Chuka Ndulue, DE Tenny Palepoi, DE Darius Philon, NT-DE Damion Square, DT Carlos Wray.
Investing up front: Moving to strengthen the run defense and the pass rush, Chargers General Manager Tom Telesco spent premium assets this spring on two linemen: Mebane, an interior anchor on two Super Bowl teams with the Seattle Seahawks; and Bosa, described by former Ohio State and NFL linebacker Chris Spielman, now a football analyst, as the best defender to ever come out of Ohio State.
Nose tackle Mebane, 31, supplants Lissemore, the main starter since late in the 2013 season. The three-year contract to Mebane is worth $13.5 million and contains $5.5 million in guaranteed money.
Bosa, drafted third overall and the first non-quarterback taken, doesn't turn 21 until this month. A contractual impasse led him to sit out the final few days of spring camp.
The most-experienced returning starter, Liuget, 26, is entering the first year of a five-year extension that guaranteed him $30.5 million. He played through a knee ailment last season before having surgery in December.
Rounding out the rotation: Lissemore could see more time at end this year, in addition to spelling Mebane. The 28-year-old is coming off winter shoulder surgery.
Philon, who at 22 is young for an NFL sophomore, missed two months with a hip injury last years. He is physically from the mold of Liuget, though slightly smaller.
Palepoi, 25, missed last season to recover from a foot injury. A former team captain at Utah, he played 15 games as an undrafted rookie in 2014.
Square, 27, earned his first career start last season after moving past Carrethers, a 2014 draftee who showed improved fitness last season.