The San Francisco 49ers find themselves in a position no team wants. It's Week 2, and they're down to their backup quarterback. Brock Purdy is out with a toe injury, and Mac Jones will start. They also needed a new backup quarterback, and that's where a Saturday roster move came into play.

SANTA CLARA — Mac Jones came to the 49ers to back up Brock Purdy after washing out in both New England and Jacksonville, working his hardest to be ready for called upon.

Kyle Shanahan’s answers were short and to the point Wednesday when discussing the toe and shoulder injuries for 49ers quarterback Brock Purdy. Purdy injured his big toe in last week’s 17-13 win over the Seahawks,

Mac Jones will start for the San Francisco 49ers against the New Orleans Saints. Brock Purdy is out with a toe injury. Coach Kyle Shanahan has confidence in Jones. Jones is preparing with the first-team offense.