Dyson, 33, spent last season with the Mariners. He hit an underwhelming .251/.324/.350, but stole 28 bases while playing superb defense in center field.
Dyson doesn’t quite make up for the Diamondbacks losing J.D. Martinez, who just signed with the Red Sox, but he will bring some speed and defense to the outfield along with A.J. Pollock. It’s not quite clear how the D-Backs plan to utilize Dyson. That should be made clear after the deal is announced.