Overview

• Head coach Kyle Shanahan said it is highly unlikely Brock Purdy starts, confirming Mac Jones will make a second straight start on Sunday.
• Purdy was limited in practice all week and is listed as questionable, with the toe injury still an issue and the shoulder less limiting.
• The team is weighing Purdy as either the No. 2 quarterback or an emergency No. 3, with a final call expected Saturday.
• Practice-squad QB Adrian Martinez is expected to be involved, either as a standard elevation if Purdy is inactive or via a 53-man signing if Purdy dresses only as an emergency option.
• Rookie depth is in flux, with guard Connor Colby questionable due to a groin injury and receiver Jordan Watkins reported as a potential injured-reserve candidate with a calf issue.