McCullers (arm) is being considered for a move to the bullpen, Hunter Atkins of the Houston Chronicle reports.

Manger A.J. Hinch was vague when discussing McCullers' immediate future beyond Saturday's bullpen session, but it sounds like the manager's unsure about how much volume the right-hander can handle. McCullers was scratched from a start earlier this week due to arm fatigue. Hinch said he "probably" will use McCullers in the series opener against the White Sox on Tuesday, but he had not decided who will start the game.