How Kyle Shanahan and the 49ers Fight Brain Drain (And Why They'll Likely Have To Do It Again This Offseason)
2019 San Francisco 49ers season - Wikipedia
How Chiefs offense beats 49ers defense in Super Bowl LIV - Arrowhead Pride
San Francisco 49ers 2023 NFL Preview: Super Bowl contenders, even with QB questions
49ers 2019 roster battles: Who emerges as the lead running back? - Niners Nation
49ers positional review: The defensive line was historically good in 2019 - Niners Nation
The 49ers Are Undefeated. Yes, Those 49ers. - The New York Times
San Francisco 49ers Season Preview: Projected Depth Chart, Rosters, and Predictions
Are some 49ers glad the season is now in Jimmy Garoppolo's hands?
Can 49ers break through championship window before it closes? - ESPN