Eduardo Chapolin steps in after injury forces Jose Ochoa out of Charles Johnson’s UFC 330 flyweight matchup in Philadelphia

UFC 330 in Philadelphia just got a shake-up in the flyweight division. Charles Johnson’s scheduled opponent, Jose Ochoa, will no longer fight on Saturday due to an injury, according to the update Johnson shared publicly. Ochoa’s withdrawal opens the door for Eduardo Chapolin, a promotional newcomer who will step in as the replacement for the bout.

The matchup, originally set as a flyweight contest, is part of the UFC 330 card scheduled for Philadelphia, with the fight taking place at the Xfinity Center, as reported. Johnson’s move to confirm the change on Instagram underscores how quickly fights can evolve at the top level, even when training camps are already underway. For Johnson, the timing of the replacement also means an opponent switch with limited ability to fully tailor game plans.

Ochoa’s injury is the determining factor in the replacement, and the practical consequence is straightforward: fight-week preparation shifts to a different style and skill set. Even when fighters come from the same weight class, the differences in stance, pace, wrestling entries, and striking range can be substantial. The swap can affect not just the technical approach but also the fight’s risk profile, particularly in the early exchanges where both camps look to establish control.

Chapolin’s entry adds another layer of uncertainty. Because the replacement is described as a promotional newcomer, his UFC debut environment is likely to come with a different set of pressures than those typically faced by established competitors. For Johnson, facing a first-time UFC opponent can cut both ways, providing less readily available footage and matchup history while also removing some of the “scouting certainty” that veterans carry into camps.

UFC 330 remains a high-stakes event for the fighters involved in the flyweight division, where performance can quickly influence future matchmaking. In a division that values both momentum and consistency, a short-notice opponent change can still produce a decisive statement. Johnson will be expected to make the adjustment immediately, while Chapolin’s UFC arrival creates an opportunity to win over a new audience and prove his readiness for the sport’s biggest stage.

The immediate question becomes how the fighters handle the first round. Johnson’s camp has to manage the unpredictability of a replacement and the possibility that Chapolin arrives with a specific strategic plan designed to capitalize on Johnson’s limited adjustment time. For Chapolin, the task is to convert his opportunity into tangible UFC-level effectiveness early, rather than letting the moment overwhelm him.

With the official change already reported and Johnson’s public acknowledgment cited, the fight will proceed with Chapolin as the opponent. What to watch next is how both fighters shape their tactics during final preparations and whether any additional late developments arise between now and the first bell. For the flyweight division, the bout is now also a test of adaptability under UFC’s most unforgiving conditions.