Chargers' Chris Watt diagnosed with concussion

San Diego Chargers right guard Chris Watt was diagnosed with a concussion after being forced from Monday's game against the Pittsburgh Steelers.

Watt, who normally plays center, started at right guard on a Chargers line that has been ravaged by injuries.

Playing through a groin injury, Watt was unable to finish the contest and will now enter the league's concussion protocol.