Diamondbacks' Madison Bumgarner: Sim game Saturday

Bumgarner (back) will throw a simulated game Saturday, Mark Faller of the Arizona Republic reports.

Bumgarner had thrown two simulated games and a bullpen session, leading to speculation about a pending return Saturday, but the team is exercising caution. Arizona manager Torey Lovullo said Bumgarner is "extremely close" to returning and will sit down with the left-hander following the sim game to map out the plan for Bumgarner's return.