Chargers' O-line issues mount

The major injury issues for the San Diego Chargers along the offensive line are continuing. The San Diego Union-Tribune is reporting that key backup Scott Mruczkowski will be placed on the injured reserve after he suffered a concussion on Sunday at Chicago — the Chargers' fifth consecutive loss.

Standout guard Kris Dielman was put on the injured reserve last week with a concussion; Mruczkowski was playing for Dielman. The Chargers are also playing without starting offensive linemen Marcus McNeill and Louis Vasquez — and Vasquez's backup, Tyronne Green, is dealing with an injury, too.

San Diego signed three offensive linemen last week. It could now sign another one to replace Mruczkowski.

Receiver Malcom Floyd (hip) and linebacker Shaun Phillips (foot) remained out of practice. They’ve both missed several weeks. Running back Ryan Mathews (knee) was limited in practice Wednesday.

Meanwhile, the Union-Tribune adds, quarterback Philip Rivers convened a short players-only talk on the field after Wednesday's practice.