Diamondbacks trade deadline: Tracking trades, updates and state of the roster

The Arizona Diamondbacks have hoped that a run was coming for most of this season, that they could avoid selling off key pieces and approach the trade deadline as a buyer.

That hope did not materialize in enough wins to stave off a sell, as Arizona dealt six players away in exchange for nine prospects, eight of whom are pitchers, before the trade deadline on Thursday.

The new-look Diamondbacks enter the final two months of the regular season in a different phase, as a younger group will have opportunities. The D-backs struggled mightily over the past week with the weight of the trade deadline prevalent, and the internal expectation is that a diminished club will fight to play competitive games down the stretch.

Let’s review the timeline of this deadline:

Final results: Diamondbacks deals made at trade deadline

Diamondbacks trade 1B Josh Naylor to Mariners for LHP Brandyn Garcia, RHP Ashton Izzi

Diamondbacks trade OF Randal Grichuk to Royals for RHP Andrew Hoffmann

Diamondbacks trade 3B Eugenio Suarez to Mariners for 1B Tyler Locklear, RHP Hunter Cranton, RHP Juan Burgos

Diamondbacks trade RHP Merrill Kelly to Rangers for LHP Kohl Drake, LHP Mitch Bratt, RHP David Hagaman

Diamondbacks trade RHP Shelby Miller and LHP Jordan Montgomery to Brewers for cash

July 31: Merrill Kelly traded, Zac Gallen stays put

The big four Diamondbacks who were heavily rumored to be traded were Merrill Kelly, Zac Gallen, Eugenio Suarez and Josh Naylor, who will each become a free agent at the end of the year.

Suarez and Naylor were dealt before deadline day, and the D-backs found a deal for Kelly before the buzzer on Thursday. Arizona traded Kelly to the Texas Rangers for pitching prospects Kohl Drake, David Hagaman and Mitch Bratt.

The market for Gallen, meanwhile, did not lead to a deal, as the accomplished right-hander going through the worst statistical season of his career will stay put.

After the deadline had passed, reports came in that the D-backs finalized one more deal. Arizona traded reliever Shelby Miller and injured pitcher Jordan Montgomery to the Milwaukee Brewers for cash, saving the club around $3 million.

Aftermath for Arizona: The D-backs lose a consistently excellent starting pitcher in Kelly (3.22 ERA) and will insert veteran Anthony DeSclafani into the rotation.

There will be opportunities for younger position players and relievers to get run at the major league level.

July 30: Eugenio Suarez traded to the Seattle Mariners

The D-backs traded Suarez to the Seattle Mariners for first base prospect Tyler Locklear and pitching prospects Juan Burgos and Hunter Cranton, according to Arizona Sports’ John Gambadoro.

Suarez gets to return to Seattle, where he played from 2022-23.

Locklear is the headliner for the D-backs. He is a 24-year-old corner infielder and the No. 9 prospect in the Mariners’ system at the time of the trade, per MLB Pipeline. Cranton and Burgos are ranked No. 16 and No. 17, respectively.

Aftermath for Arizona: The Diamondbacks opted to deal their power-hitting, All-Star third baseman before he becomes a free agent at the end of the year. Paired with the Naylor trade, the Diamondbacks have taken some serious power off their baseball team, one that had been a top-five scoring offense in the league. Suarez hit 36 home runs with 87 RBIs for the D-backs this year, becoming the first player ever to be traded in a season after hitting 35 home runs.

They move onto another phase of their season with younger talent coming in.

Locklear is a power-hitting first baseman with an opportunity to become a building block. Burgos and Cranton add to the growing list of relief pitching prospects as the Diamondbacks look to build a bullpen through youth this time.

July 30: Eugenio Suarez returns, Diamondbacks play final game before deadline

Suarez jumped back into the starting lineup on Wednesday after getting hit by a pitch on the right hand on Monday in Detroit. Suarez doubled in what could have been his final at-bat with the D-backs (51-58), who lost the game 7-2.

He goes into trade deadline Thursday sporting an .896 OPS, 36 home runs and 87 RBIs.

Last Dbacks at-bat for him? pic.twitter.com/rnYbstFD5b

— Talkin’ Baseball (@TalkinBaseball_) July 30, 2025

The Reds made a play for a new third baseman after they had reported talks with the D-backs for Suarez. Cincinnati added Ke’Bryan Hayes from the Pittsburgh Pirates on Wednesday, a Gold Glover and well below-average hitter.

The Cincinnati Reds, who were also in discussions with the Arizona Diamondbacks for Eugenio Suarez, take on $32.2 million in their Pirates deal for Ke'Bryan Hayes. He is in the fourth year of his eight-year, $70 million contract.

— Bob Nightengale (@BNightengale) July 30, 2025

The Mariners, Astros, Tigers, Phillies and Cubs are other teams that have been tied to Suarez.

The Diamondbacks have reportedly commanded a very high price for Suarez in trades, which led the interested Yankees to find another third base solution in Ryan McMahon from Colorado.

Additionally, WEEI’s Rob Bradford reported on Wednesday that the Boston Red Sox have shown interest in Gallen and Kelly as they fight for American League Wild Card position.

Elsewhere in the National League West, the San Francisco Giants traded reliever Tyler Rogers to the New York Mets for a package of pitcher Jose Butto, pitching prospect Blade Tidwell and outfield prospect Drew Gilbert. The Giants (54-54) are ahead of the D-backs in the standings, but they are having a rough July and have opted to sell.

July 29: Imaging comes back clean for Eugenio Suarez

Suarez was held out of Tuesday’s starting lineup in Detroit, but he told reporters that a CT scan and an MRI came back clean for his hand.

The update is a sigh of relief for the Diamondbacks whether they elect to deal him or not, along with teams asking for his services.

ESPN’s Buster Olney reported on Tuesday that the Reds had been in contact with the Diamondbacks, which backed up a report from The Athletic’s C. Trent Rosecrans last week that the two sides had interest in a deal.

The Cincinnati Reds are among the teams who've been in contact with the Diamondbacks about Eugenio Suarez, but if Arizona finds a deal elsewhere with the high price set on the slugger, the Reds may well pivot to another third baseman on the market — Gio Ushela of the A's, Isiah…

— Buster Olney (@Buster_ESPN) July 29, 2025

Adam Jude of the Seattle Times reported that Suarez remains a priority for the Mariners’ front office.

Another Diamondbacks player popped up in trade rumors, as outfielder Jake McCarthy was mentioned in a report from The Athletic as a potential target for Houston.

July 28: Eugenio Suarez hit in hand by pitch while trade rumors swirl

On Monday, Suarez dug in against the Tigers and was plunked in the right index finger by a 96 mph sinker thrown by Will Vest. Suarez hopped up and shook his hand furiously in pain, exiting the game quickly afterward. Suarez told reporters that his X-rays were negative but that he would undergo more testing.

USA Today’s Bob Nightengale reported on Monday morning before the game that Detroit would love to finalize a trade for Suarez before the D-backs leave Detroit on Wednesday.

Arizona Sports’ John Gambadoro said on Monday’s Burns & Gambo that the D-backs are torn on what to do with Suarez, as he’s very well regarded in the building.

Is there a scenario where Eugenio Suarez is NOT traded?

And if so, what does it mean for next season?@Gambo987 has the latest! pic.twitter.com/t1uUmG5BlQ

— The Burns & Gambo Show (@BurnsAndGambo) July 28, 2025

Nightengale wrote that the D-backs have not entered contract extension talks with the 34-year-old Suarez.

July 26: Diamondbacks trade Randal Grichuk to Royals

The D-backs pulled Grichuk out of Saturday’s game, as he hugged his teammates goodbye in the dugout. He jumped into Kansas City’s starting lineup the next day.

Arizona acquired right-handed reliever Andrew Hoffmann in return, a 25-year-old who, like Garcia, could assist the bullpen sooner rather than later.

Aftermath for Arizona: Grichuk has been a platoon bat against lefties for Arizona over the past couple seasons, filling the role decently well (.807 OPS as a D-back). Arizona brought up outfielder Jorge Barrosa over the weekend and kept him on the roster once Alek Thomas returned from the bereavement list.

Barrosa is a switch-hitter, so he gives the D-backs some flexibility. Blaze Alexander is a right-handed option to start against lefties, while Jordan Lawlar (injured list) and Tim Tawa are right-handed bats in Triple-A Reno who could come back up at some point.

Arizona had already fared better against righties than lefties this season, so removing Grichuk puts even more of the onus on Ketel Marte and Lourdes Gurriel Jr. specifically to punish southpaws down the stretch.

Hoffmann made his MLB debut with Kansas City this season and was sent to Reno after the trade. The Diamondbacks’ bullpen has been brutalized by injuries this year, and Garcia and Hoffmann represent two younger arms to help build out the group going forward.

July 24: Diamondbacks trade Josh Naylor to Mariners

The D-backs dealt Naylor to Seattle for pitching prospects Brandyn Garcia and Ashton Izzi.

After sweeping the St. Louis Cardinals out of the All-Star break, the Diamondbacks’ potential momentum halted with a particularly maddening series in which they were swept by an injury-plagued Houston Astros squad.

With the writing on the wall and a flurry of trade offers coming in, the D-backs struck early by sending Naylor to Seattle.

It was the sixth trade of major leaguers between the Diamondbacks and Mariners since Mike Hazen took over as Arizona’s general manager following the 2016 season.

Aftermath for Arizona: Naylor was a big bat to remove from the middle of the order, and with more trade rumors around the team, Arizona went out and scored two runs in 38 innings played from Friday to Monday.

Naylor hit .292 with an .807 OPS in Arizona.

Tristin English, 28, will take the bulk of first base reps for the time being in his first real MLB look. Pavin Smith is on the injured list with an oblique strain and is positioned to take over at first base when healthy, at least against righties. Adrian Del Castillo can fill in as a designated hitter option against righties, depending on how the D-backs organize their roster.

Garcia is 25 years old and already up with the big league club. The lefty made his D-backs debut on Sunday, throwing a scoreless inning out of the bullpen. He hit 96 mph with his sinker, giving the D-backs another left-handed option with a different look than fellow southpaws Kyle Backhus and Andrew Saalfrank.

Izzi, a 21-year-old right-handed starter, was assigned to High-A Hillsboro.