The San Diego Chargers placed starting right guard Johnnie Troutman on injured reserve with aknee injury in last Saturday’s overtime win over the 49ers.

Troutman becomes the latest Chargers offensive lineman to get injured.

Chris Watt is injured, so Trevor Robinson would replace him at center.

Jeremiah Sirles replaces Troutman.

The Chargers promoted Kenny Wiggins from the practice squad.

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Aaron Wilson covers the Ravens for The Baltimore Sun