Arnold Allen and Melquizael Costa participated in a promotional face-off during the weigh-ins for UFC Vegas 117 in Las Vegas [1, 4].

The staredown marks the final preparation for the two featherweights before they enter the cage. For Allen, the bout is a critical opportunity to maintain his position as the No. 7 ranked fighter in the division [1].

Both athletes must adhere to the featherweight limit of 145 pounds [1]. The face-off is a long-standing promotional tradition that allows opponents to size each other up before the official start of the event on Saturday, May 11 [1, 4].

While the main event preparations proceeded, the overall card faced disruptions. Nicolas Dalby was pulled from his scheduled bout against Jeremiah Wells due to a training-camp injury [2, 3]. This withdrawal was reported on May 7 [2].

Reports on the total impact to the card vary. Some sources said that only Dalby's bout was cancelled [2], while others said that two fights were removed from the UFC Vegas 117 lineup [3].

The event takes place in Las Vegas, Nevada, a city frequently referred to as "Sin City" [1, 5]. The organization typically seeks replacements when fighters withdraw, though the status of the remaining vacancies remains unconfirmed.

Arnold Allen is ranked No. 7 in the featherweight division

The loss of fighters like Nicolas Dalby highlights the volatility of fight cards, where training-camp injuries frequently force last-minute cancellations. For Arnold Allen, the fight against Costa is a high-stakes effort to protect his top-10 ranking and move closer to a title contention opportunity in the 145-pound division.