Kyle Shanahan Clarifies When He Told Jordan Mason He'd Start Over Christian McCaffrey

Shanahan watches warm ups before the game against the New Orleans Saints at Levi's Stadium. | Kyle Terada-Imagn Images

The San Francisco 49ers took down the New York Jets on Monday Night Football with backup running back Jordan Mason drawing his first career start in place of the injured Christian McCaffrey.

After the game, Mason told ESPN's Lisa Salters that he knew as early as Friday that he'd be starting the game, despite the team not officially announcing McCaffrey's absence until a few hours before kickoff.