Fierce competition expected to determine who starts opposite Richard Sherman

One of the better competitions leading into the start of the regular season could be at cornerback, where two recent third-round draft picks and an injury-plagued first-rounder will be going after one starting job.

Thats assuming, of course, that Richard Sherman is already locked in as the starter on the other side.

I anticipate that, 49ers coach Kyle Shanahan said this week at the NFL owners meeting in Phoenix.