Early injury issues for Cal

The worst part of preseason camp: Reading reports on injuries.

California took two hits over the weekend: starting left tackle Matt Summers-Gavin went down with a knee injury, and reserve safety Vachel Samuels, a redshirt freshman, broke his foot and is done for the season.

Summers-Gavin's status won't be resolved until Monday, when he gets an MRI. You can read more here. If the injury knocks him out of action, it's likely that right tackle Mitchell Schwartz would switch back to left tackle; he played the position in 2008. On the latest depth chart, junior Sam DeMartinis is listed behind Schwartz on the right side, but it's possible that senior Donovan Edwards -- the No. 2 left tackle being leapfrogged by Schwartz -- could move back to the right side. Edwards was the backup there in 2009.