The San Francisco 49ers travel to face the Houston Texans this weekend in their preseason opener, and with this game comes the first depth chart of the preseason. The depth chart is produced by the team's PR staff, so it must be taken with a grain of salt.
On the offensive side of the Ian Silberman and Dillon Farrell are listed as the second and third centers. However, reports have had Marcus Martin getting a sizable amount of second team center snaps. Trent Brown is listed as the second string right tackle, but he has been getting snaps on both sides of the ball, and might be working his way into the swing tackle role.