All systems are go for UFC Vegas 117, as the fighters have officially hit the scales and the card is locked in. While this weekend features plenty of combat sports action, the Octagon takes center stage with a compelling 13-fight lineup headlined by a pivotal featherweight showdown between Arnold Allen and Melquizael Costa.

For Allen, this is more than just a main event—it's a career crossroads. The Englishman, once on a tear with 10 straight UFC wins, has hit a rough patch, dropping three of his last four outings. Losses to elite names like Max Holloway and Movsar Evloev, plus a setback against Jean Silva, have tested his resolve. His win over Giga Chikadze proved he still has firepower, but "Almighty" needs a statement performance to climb back into title contention. He came in right at 145 pounds, looking sharp and ready for war.

Standing across the cage is Costa, a Brazilian dynamo riding a six-fight win streak that has fans buzzing. "The Dalmatian" has been putting on a show, with recent knockout wins over Morgan Charriere and Dan Ige that have earned him serious momentum. At just 29 and weighing in at 145.5 pounds, Costa is hungry to crash the rankings and prove he belongs among the division's elite. This clash of veteran savvy vs. rising power is exactly the kind of fight that makes UFC events unmissable.

The rest of the card also came in clean, with no last-minute weight drama. Notable names include fan favorite Doo Ho Choi, who faces Daniel Santos, and a women's bantamweight bout featuring former title challenger Ketlen Vieira against Jacqueline Cavalcanti. The action kicks off Saturday with prelims at 5 p.m. ET, followed by the main card at 8 p.m. ET, all streaming live on Paramount+.

Whether you're gearing up for fight night with fresh gear or just love the drama of the weigh-in, this card delivers. Allen and Costa are both ready to leave it all in the Octagon—and with so much on the line, expect fireworks from start to finish.