Chargers Chris Watt warms up against the Ravens. — K.C. Alfred
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Chargers offensive lineman Chris Watt is done for the 2015 season due to a shoulder injury.
The team on Monday placed Watt, a center and guard, on injured reserved.
In the corresponding move, the Chargers promoted Craig Watts from the practice squad to the 53-man roster for tonight's game against the Chicago Bears.