D-backs bring in Jun-Sang Eom, a two-way prospect with projected KBO Draft pedigree

Arizona’s newest international signing arrived at Chase Field with a quick reminder that he is built for more than one side of the baseball. Jun-Sang Eom, a two-way prospect from South Korea, was officially welcomed into the Diamondbacks organization on Tuesday afternoon in a ceremony at the ballpark. The club also shared images from the moment he joined the big league group on the field for batting practice, capping the celebration by launching a few home runs.

The signing lands Eom in the Diamondbacks’ 2026 international class, a group assembled during the current international signing window that runs on MLB’s calendar. MLB and club communications have positioned Eom as a standout athlete with the kind of upside that draws attention in international scouting, especially from organizations willing to develop players who can contribute both as a hitter and as a pitcher.

Eom’s profile has been tied to what teams look for in high-ceiling prospects: a combination of ability, athleticism, and the potential to develop into a two-way contributor. In the D-backs’ announcement, he is described as a two-way player and characterized as a projected top pick in the KBO Draft. That comparison matters because it suggests his talent level had already reached the threshold that makes professional teams take notice in South Korea, even before an MLB role is fully defined.

The ceremony itself was also notable for what it indicated about Arizona’s approach. By bringing him to the field for batting practice with members of the major league club, the Diamondbacks gave Eom a direct look at the environment and routines of the organization’s highest level. While batting practice is not a game setting, it is often used internally to begin alignment on swing paths, timing, and how a player fits into the team’s daily work.

From a development standpoint, the most consequential question around any two-way prospect is workload and pathway. Organizations typically map an early plan that balances instruction, safety, and the reality that not every athlete can progress both pitching and hitting at full speed. The announcement did not outline a specific timetable for when Eom would throw live or how his professional usage would be divided, but the club’s emphasis on his offensive celebration suggests hitting will be a visible starting point as he transitions into organizational training.

For Arizona, this kind of international acquisition also fits a broader roster-building need: creating depth in the system with players who may take time but could become differentiated options. Even without immediate impact at the major league level, a high-upside two-way prospect can reshape a pipeline, giving the organization more flexibility as it evaluates future minor league assignments and potential major league roles.

In the coming months, the details to watch will be process-based rather than scoreboard-based. Key items include how the club characterizes his primary focus early in the transition, whether he takes steps toward structured pitching development, and how Arizona integrates him into instruction across its hitting, pitching, and performance programs. For Eom, the path from a celebrated signing to a fully defined professional role will be measured in development milestones, not ceremonies.

For now, the most immediate takeaway is that the Diamondbacks did not treat the signing as a quiet administrative milestone. They staged it as an introduction, put Eom on the field with the big league club, and highlighted his KBO Draft projection as a marker of his overall talent. If the organization can translate that athletic promise into consistent development, Eom’s two-way label could become more than a scouting phrase and instead a usable advantage inside Arizona’s long-term planning.