Sam Darnold wins backup QB job for 49ers, putting Trey Lance's status in doubt - The San Diego Union-Tribune
49ers coach Kyle Shanahan plans quarterback rotation switch in second exhibition game
49ers name QB Sam Darnold backup to Brock Purdy over Trey Lance
49ers Roundtable: What are you looking forward to the most in tonight's preseason game? - Niners Nation
49ers use QB platoon to beat Raiders 34-10
49ers name Colin Kaepernick starting quarterback
49ers QB Sam Darnold expected to start, play most minutes vs. Broncos – NBC Sports Bay Area & California
How Kaepernick's rise in 2012 season could help Kyle Shanahan with 49ers' quarterback decision
NFL Preseason Week 3 Takeaways: 49ers QB Brock Purdy Ready to Go