Chargers Training Camp Battles - Offense

Jake Roth-USA TODAY SportsAlmost all of the San Diego Chargers starters and key back-ups can be readily identified at this point. Here's what to watch for starting on the 30th.

The Bolts seem to have most of the players figured out at the top and 2nd level of the depth chart, which is somewhat unusual. What is not unusual is that there are many more men competing for open roster spots than there are actual openings. Here's what to watch out for, starting July 30.

Quarterback

The only questions here are 2 or 3? If 3, will that Brad Sorensen or Chase Rettig? The Bolts could do worse with Clemens as a back-up to El Capitan. If the Bolts decide to keep 3 QB's, Sorensen will probably have the edge…