The Mets have added a new arm to their roster, acquiring right-hander Paul Blackburn from the A’s, The Post’s Joel Sherman confirmed. 

Minor league pitcher Kade Morris is headed to Oakland as the return, according to reports.

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The trade comes just days after Blackburn had been reinstated from a stint on the 60-day IL due to a stress reaction in his right foot. 

He has a 7.11 ERA over his last six starts, but did pull off a win in his first start since the return on Friday despite allowing four runs on five hits while striking out two in Oakland’s victory over the Angels.