Susana’s velocity stands out as Arizona Fall League opens its 34th season of prospect showcases

The Arizona Fall League kicked off its 34th season on Oct. 3, keeping the focus on prospect development even after the regular Minor League calendar has wrapped. In a Week 1 recap, MLB highlighted how top performers across the league used the early slate as a first chance to separate themselves on a stage built for evaluation ahead of the next roster decisions.

The weekly format matters because the AFL is designed to concentrate prospects into a single circuit. That structure means teams can compare their players against a broader group than they might see within their own minor league affiliates, and it also creates a consistent environment for pitchers and hitters who are working through specific development goals.

Among the Week 1 storylines, MLB pointed to Susana and his “high-octane velocity” as a central theme of the early standout list. The emphasis on velocity reflects the kind of measurable trait scouts track in this setting, particularly for pitchers who are trying to translate raw tools into consistent performance versus quality competition.

The Week 1 recap also indicated that the league’s action will be tracked continuously rather than as a one-off showcase. MLB said it would publish top-performer recaps each week, meaning the AFL’s early leaders are likely to be watched again as the season progresses, with momentum and adjustments becoming part of the storyline from one update to the next.

For players, the timing is significant. With the Minor League season already finished, the AFL serves as a late-season proving ground where organizations can observe how prospects respond when their year-long routine changes. Velocity and command are often discussed in terms of how well a pitcher can repeat his delivery on demand, while hitters are evaluated on how they handle timing and pitch quality when the calendar turns.

The AFL’s 34th iteration also carries a built-in expectation: performances in this circuit can become an early reference point for where prospects stand heading into the next phase of development. That does not guarantee a direct jump to the Majors, but it often helps organizations frame priorities, whether that means refining specific mechanics, improving decision-making, or identifying which parts of a skill set are ready to move to the next level.

As the circuit moves beyond its opening week, the key question is whether the early velocity emphasis, including Susana’s highlighted outing, carries over into subsequent matchups. The weekly recaps will likely provide the clearest way to follow that progression, because they are structured to revisit who is producing and in what manner, week by week.