Mets Reportedly Seek Trade for Diamondbacks Pitcher Merrill Kelly

The New York Mets are actively considering trading third baseman Mark Vientos, who has struggled in the 2025 season compared to his breakout 2024 campaign that included 27 home runs and an .837 OPS. Despite a recent uptick in performance, Vientos remains a part-time player with defensive challenges, and the Mets see him as valuable trade bait to improve their pitching staff or outfield. Trade discussions have prominently featured Arizona Diamondbacks starter Merrill Kelly, who has a 3.22 ERA this season and could bolster the Mets' rotation, though the Mets would likely require additional assets beyond Vientos due to his long-term controllable contract. Another potential trade scenario involves swapping Vientos for Chicago White Sox outfielder Luis Robert Jr., who has struggled recently but offers upside and contractual flexibility. The Mets are balancing the desire to enhance their postseason chances with the need to preserve future team potential, with Vientos’ status as a young player making negotiations complex. Overall, the Mets are exploring multiple trade options involving Vientos as they aim to strengthen their roster for the National League East title race.