**Stevie McKenna entered the Zuffa Boxing 10 middleweight prelim against Owen O’Neill as a heavy favorite, reflecting his superior power, finishing ability, and recent form.** The Irish southpaw and fan favorite had already delivered rapid knockouts in prior Zuffa appearances, showcasing clubbing left hooks and aggressive pressure that overwhelmed opponents early. O’Neill, a Belfast middleweight, lacked comparable experience against high-level opposition and faced a stylistic mismatch against McKenna’s explosive output. The Dublin home crowd at the 3Arena further bolstered McKenna’s positioning, while his status as the older brother of main-event title challenger Aaron McKenna added motivational context within Irish boxing circles. Recent results highlighted McKenna’s one-punch threat and ability to end fights inside the opening round, aligning with the 90% implied probability as trader consensus on his dominance. No significant injury concerns or late changes altered the pre-fight landscape.