The Chargers practiced in San Diego on Tuesday for the first time since their relocation.

On the nostalgia meter, this was a zero.

Actually, this was a Jim Otto. A double zero.

The Chargers were in San Diego for 56 years. Now they’re in Los Angeles . The San Diego vibe has left the building .

The football team from L.A. seemed like interlopers when they took the field Tuesday at the University of San Diego’s Torero Stadium.

Never mind the familiar lightning bolt helmets and the blue and gold duds as they worked out on the grass field. Though players appreciated the freshening breezes and 72-degree comfort, San Diego is just another place to the guys who now play football for the Chargers.

It would’ve been different with Philip Rivers throwing passes or Antonio Gates catching the

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