Chargers RB Mathews not cleared to practice

San Diego Chargers running back Ryan Mathews has not been cleared to practice this week because of a concussion.

The San Diego Union-Tribune reported that Mathews was held out of practice Thursday. He sustained a concussion during Sunday night's games against the Oakland Raiders.

However, the team did clear left tackle King Dunlap, who is also recovering from a concussion. He did practice Thursday.

The Chargers offensive line is still banged up. Left guard Chad Rinehart (foot) and right tackle D.J. Fluker did not practice. The team did not provide a reason for Fluker's absence.