If your only exposure to the 49ers’ defense was Sunday night against the Denver Broncos
DENVER –- Cornerback Tramaine Brock, out since Week 1 with "turf toe," will return to the starting lineup Sunday night against the Denver Broncos.
SANTA CLARA –- Guard Mike Iupati did not practice, but he walked out to the 49ers’ practice field to observe as he continues to go through the NFL concussion protocol.
Programming note: For comprehensive 49ers coverage from Santa Clara, watch “49ers Central” tonight at 6:30 & 10:00 p.m. on Comcast SportsNet Bay Area
Programming note: Jim Harbaugh is scheduled to address the media today at 1:00 p.m.