Kranick will be added to the major-league roster to start Sunday against the Marlins, Alex Stumpf of DKPittsburghSports.com reports.
The right-hander has been with the Pirates over the past few days as a member of the taxi squad, and he'll officially rejoin the big-league roster to start Sunday's series finale. Kranick has a 7.66 ERA, 1.78 WHIP and 19:10 K:BB across 24.2 innings this season, and it's unclear whether or not he'll remain in the rotation for the final two weeks of the campaign.