Michael Crabtree: (Knee) Limited Thursday

Crabtree (knee) was a limited practice participant Thursday, the 49ers' official site reports.

Analysis:

Crabtree bumped up from no activity Wednesday, placing him on a path to active status Saturday versus the Chargers. While he has averaged only 9.9 YPC over the last five contests, San Diego's defense can be exploited, after giving up five touchdown catches to wide receivers in the past four games.