The Chargers have begun training camp. Here are players and key position battles to watch -- and a 53-man roster projection.

When word went public that Jim Harbaugh was taking the Chargers back to San Diego for training camp sessions this summer, not everyone was pleased, to say the least. That, despite the University of San Diego being Harbaugh’s first coaching stop.

The Chargers continued training camp on Monday at The Bolt in El Segundo, CA, marking the fourth day. Training camp can be attended for free (with a ticket), but if you cannot be there, you will still be informed of the action throughout it all.