Zac Gallen, Merrill Kelly, Eugenio Suárez and Josh Naylor are all reportedly available as the Diamondbacks try to retool and add young pitching.

The decision won't be easy for the D-backs, but with interest from top-tier teams, Zac Gallen's future in the MLB could change at any moment. Fans of the Yankees, Red Sox, and Cubs will be watching ...