PHOENIX – Decisions must be made as the MLB trade deadline comes next month, and there are a lot of questions surrounding what the Arizona Diamondbacks will end up doing.
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Jun 14, 2025; Phoenix, Arizona, USA; Arizona Diamondbacks pitcher Zac Gallen (23) on the mound to pitch during the third inning against the San Diego Padres at Chase Field. Mandatory Credit: Allan Henry-Imagn Images
There are glaring needs for this ball club if they want to contend in the playoffs this year, and it starts with their bullpen and closing pitcher role. Just last night, Shelby Miller gave up two home runs in the bottom of the ninth inning to cost Arizona the victory. Miller has looked decent in a setup role this season, though has faulted at times as a closer. After injuries to A.J. Puk and Justin Martinez, the answer to this problem very well could be on another major league roster as of now.

Arizona Diamondbacks Executive Vice President and General Manager Mike Hazen during spring training practice at Salt River Fields at Talking Stick in Scottsdale on Feb. 13, 2025. © Rob Schumacher/The Republic / USA TODAY NETWORK via Imagn Images
Arizona Diamondbacks General Manager Mike Hazen on the 2025 MLB trade deadline:
(Credit: MLB Network Radio)
“We do these jobs to take shots and win.”
Mike Hazen sets the record straight and confirms that the #Dbacks are planning to buy at the trade deadline.@Dbacks
????https://t.co/fGPbvbj8w4 pic.twitter.com/d0xm6UndB9— MLB Network Radio on SiriusXM (@MLBNetworkRadio) June 15, 2025
Josh Naylor was asked about General Manager Mike Hazen’s comments:
(Credit: Jack Sommers | Sports Illustrated)
Josh Naylor upon hearing what Mike Hazen had to say about having brought these guys in to win and not wanting to sell and pull the rug out from under them
He definitely doesn’t hate being a Diamondback pic.twitter.com/NWcaryMm2V
— Jack Sommers (@shoewizard59) June 18, 2025
Josh Naylor is one of the few members of the D-Backs who will be a free agent next season. Some have speculated that because Arizona has so many players entering free agency at the end of the season, that the D-Backs might need to move some pieces to get some back. Eugenio Suárez, Zac Gallen, and Merrill Kelly are all big names that other ball clubs have their eyes on, as they are unrestricted free agents in 2026 as well. It leaves the question of whether the Snakes will be buyers or sellers, and what deals will they make.

Jun 17, 2025; Toronto, Ontario, CAN; Arizona Diamondbacks first baseman Josh Naylor (22) celebrates with team mates in the dugout after scoring a run against the Toronto Blue Jays in the fourth inning at Rogers Centre. Mandatory Credit: Dan Hamilton-Imagn Images
There still is a little ways to go until the MLB 2025 trade deadline, as July 31st at 6 p.m. ET will be the date to keep an eye on. As for now, the Diamondbacks seem to know what they want, now it’s a matter of being able to make it happen.
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Reporter Benjamin Bliklen covers the Arizona Diamondbacks and Arizona Cardinals for Burn City Sports. You can follow him on his X account, @BenBliklen
