Hunter Henry‘s latest injury represents yet another early-season setback for perhaps the NFL’s clubhouse leaders for this type of obstacle. The Chargers are at work trying to add to their tight end contingent.

In addition to auditioning Luke Willson, the Bolts brought in veterans Will Tye and Ben Koyack, per the Houston Chronicle’s Aaron Wilson (on Twitter).

A former Giant, Tye last played in 2017. Koyack, a seventh-round Jaguars pick in 2016, has not caught a pass since the 2017 season. Tye, however, surpassed 40 receptions with the 2015 and ’16 Giants editions. The Chargers have Virgil Green and third-year UDFA Sean Culkin on their roster. The team has yet to place Henry on IR, though his timetable may end up requiring that — as it did last year.

Another Antonio Gates reunion has yet to be reported as a possible Bolts plan of action, but that would be a natural fit given the 39-year-old future Hall of Famer’s experience with the franchise and rapport with Philip Rivers. The Chargers brought back Gates last year after Henry’s ACL tear, and Henry returned in time for Los Angeles’ divisional playoff game.

The Bolts also worked out defensive backs Dontae Johnson and Tevaughn Campbell, along with wide receiver Anthony Johnson.