49ers signed third-round pick RB Kaelon Black to a four-year contract.

Black is expected to compete with second-year RB Jordan James in training camp for the primary backup role. James, 22, played just three offensive snaps last year, though The Athletic’s Vic Tafur said in February that “it seems like the 49ers have big plans” for him this season. Black, 24, is the latest in a long list of running backs drafted by the 49ers in the mid rounds. The 49ers’ results in this effort have not been great, but perhaps Black is the player who makes it all worth it. He scored 10 touchdowns in the Hoosiers’ championship run last year.