- Kyle Shanahan: 49ers must ‘be very careful’ about Christian McCaffrey’s Achilles tendonitisNFL.com
- 49ers RB McCaffrey’s status uncertain vs. VikingsESPN
- Christian McCaffrey injury: 49ers star RB reportedly long shot for Week 2 as he also has Achilles tendinitisCBS Sports
- Jordan Mason reveals 49ers may have broken NFL rule with Christian McCaffrey missing Week 1 gameFox News
- 49ers RB Christian McCaffrey is a Long Shot to Play Against the VikingsSports Illustrated