The UFC Vegas 87 weigh ins went off without any issues as all 22 athletes made weight successfully.
Gaziev came in the heavier of the two men in the main event. The unbeaten 34-year-old tipped the scales at 261lbs, four pound below the 265lbs limit. Rozenstruik came in at 257lbs as he looks to bounce back from his recent first round loss to Jailton Almeida at UFC on ABC 4.
Both Vitor Petrino and Tyson Pedro came in 205.5lbs ahead of their Light Heavyweight bout in the co main event of the evening.
Alex Perez and Muhammad Mokaev both came in within the 126lbs limit for their Flyweight bout, with the winner likely securing themselves as the next man to face the Flyweight king, Alexandre Pantoja in his next title defence.
Ahead of one of the most intriguing bouts of the night, Umar Nurmagomedov and Bekzat Almakhan both successfully made weight.
With no weight misses, the full card will go ahead. On the undercard, the unbeaten Javid Basharat will look to add yet another win to his UFC tenure and get back to winning ways after an unfortunate low blow in his bout against Victor Henry ended their contest early.
Aiemann Zahabi will be the man standing opposite him, looking to end Basharat's unbeaten run. The Canadian is currently 4-2 in the UFC, and currently riding a three fight win streak, with 2 first round finishes.
Both last minute opponents, AJ Cunningham and Bernardo Sopaj made weight successfully, coming in at 155.5lbs and 135.5lbs, respectively.
Main Card
Jairzinho Rozenstruik (257) vs. Shamil Gaziev (261)
Vitor Petrino (205.5) vs. Tyson Pedro (205.5)
Alex Perez (125.5) vs. Muhammad Mokaev (126)
Umar Nurmagomedov (136) vs. Bekzat Almakhan (136)
Matt Schnell (126) vs. Steve Erceg (126)
Preliminary Card
Eryk Anders (185.5) vs. Jamie Pickett (186)
Vinicius Oliveira (135.5) vs. Bernardo Sopai (135.5)
Aiemann Zahabi (135.5) vs. Javid Basharat (136)
Christian Leroy Duncan (186) vs. Claudio Ribeiro (185.5)
Ludovit Klein (156) vs. A.J. Cunningham (155.5)
Loik Radzhabov (155.5) vs. Abdul-Kareem Al-Selwady (156)