Miller to make season debut on Monday

Miller on return from Tommy John PITTSBURGH -- Shelby Miller's long road back from Tommy John surgery will add a chapter Monday when he is activated off the 60-day disabled list to start against the Marlins in Miami.

Miller, who underwent surgery last May, joined the D-backs in Pittsburgh on Thursday, but will not be added to the roster until Monday.

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In the meantime, the team demoted Matt Koch, whose place in the rotation Miller will be taking, and recalled right-handed reliever Jake Barrett to give the D-backs an extra bullpen arm for the four-game series with the Pirates.

Miller made four appearances in extended spring games at the team's Salt River Fields Spring…