Arizona Diamondbacks third baseman Eugenio Suarez fields the ball and throws out Houston Astros' Yainer Diaz in the first inning at Chase Field in Phoenix on July 23, 2025. / Rob Schumacher/The Republic / USA TODAY NETWORK via Imagn Images

Arizona Diamondbacks trade predictions for Eugenio Suarez, Josh Naylor, Merrill Kelly, Zac Gallen before 2025 MLB trade deadline on July 31, 2025.

In a move that highlights their aggressive strategy before the MLB Trade Deadline, the Seattle Mariners made headlines by acquiring first baseman Josh Naylor from the Arizona Diamondbacks on Thursday.

The Arizona Diamondbacks have been an active team at the MLB trade deadline, and Merrill Kelly or Zac Gallen could be the next to leave.

The Diamondbacks continue to be sellers. Arizona shipped off outfielder Randal Grichuk to the Royals, The Post’s Jon Heyman confirmed on Saturday. Right-handed pitcher Andrew Hoffman is going back to Arizona.

Andrew Heaney and five relievers combined on a four-hitter, Oneil Cruz hit his team-leading 17th home run and the Pittsburgh Pirates beat the Arizona Diamondbacks 2-0 on Saturday night.

The New York Yankees pulled themselves out of the running for Eugenio Suárez, and now Jon Heyman believes the Chicago Cubs and Seattle Mariners are the leaders.

Diamondbacks starter Ryne Nelson fired six innings of one-run ball against St. Louis over the weekend in his first start out of the All-Star break.