Overview
- The Cubs announced a trade with the New York Mets for left-hander David Peterson and used his roster spot to designate right-hander Yosver Zulueta for assignment, a move reported Thursday.
- Zulueta did not appear for Chicago this season and will be traded, placed on outright waivers, or released within the five-day DFA window.
- Zulueta has struggled in 2026 Triple-A work with 22 2/3 innings and a 7.54 ERA that includes 20 walks, two hit batters, and six wild pitches, which teams cited as a key reason for the decision.
- Peterson is a 2025 All-Star who has a 6.09 ERA in 2026 but stronger underlying metrics such as a 3.85 FIP, and the Cubs acquired him to provide immediate starting depth after multiple pitchers went on the injured list.
- The move continues a broader pattern of clubs using low-cost, short-term transactions and waiver swaps to manage roster flexibility and chase high-upside arms without making long-term commitments.