American bantamweight John Garza has reportedly answered the call to make his UFC debut this weekend on just one week’s notice.The 23-year-old looks set to face Farid Basharat on the undercard of UFC 329, which is headlined by Conor McGregor‘s highly anticipated return to the Octagon against Max Holloway.McGregor returns to fighting for the first time in over five years to fight Holloway in the main event of UFC 329 on July 11GettyThe undefeated Basharat was originally lined up to fight Ethyn Ewing at UFC 329.However, Ewing pulled out with an injury last week, leaving Dana White‘s promotion with a small window to find a replacement fighter for the Las Vegas show on July 11.And according to esteemed MMA journalist Marcel Dorff, an alternative has been found.Basharat will now look to make it 16-0 in his professional career against Texas native Garza on the early preliminary card of UFC 329.View Tweet: https://x.com/hashtag/UFC329?src=hash&ref_src=twsrc%5EtfwWho is John Garza?Garza is only seven fights into his pro MMA career, having made a successful debut at Texas-based promotion Xtreme Knockout in February 2024.‘Mowgli’ tasted his only pro defeat next time out under the same banner before finding his feet at the well-established Fury Fighting Championship.Garza, a hard-hitter known to come forward for the kill, is currently on a five-fight winning streak and has finished three of his last four fights by way of knockout.He now has the opportunity to steal the show on the grandest stage of them all at Las Vegas’ T-Mobile Arena for UFC 329 this weekend.Who else is fighting at UFC 329?The entire 14-fight card for UFC 329 is stacked from head to toe.After Brazil’s Alessandro Costa, who was also added to the undercard on short notice, takes on Cody Durden in the opening flyweight contest, an intriguing ranked women’s flyweight clash between Tracy Cortez and Wang Cong concludes the early prelims.Paddy Pimblett features in the co-main event of UFC 329 against Benoit Saint DenisGettyLondon’s Lone’er Kavanagh is also on the main card five months removed from an epic win over Brandon MorenoGettyBriton Luke Riley and former bantamweight champion Cody Garbrandt stand out as you move up the card before highly-rated heavyweight prospect Gable Steveson makes his UFC debut.Steveson, who has been training with Jon Jones for UFC 329, fights Elisha Ellison in what many expect to be an early, crushing KO victory for the American.Just before the main card, Robert Whittaker, also an ex-UFC titleholder, is the big name in the featured prelims bout and makes his debut as a light heavyweight against Nikita Krylov.The momentum continues for the final five-fight main card, which is kicked off by King Green’s clash with fellow UFC lightweight staple Terrance McKinney.Furthermore, London’s Lone’er Kavanagh faces the toughest test of his career at flyweight against Brandon Royval before Cory Sandhagen fights Mario Bautista in a bantamweight title eliminator.Just before McGregor’s main event with Holloway, Paddy ‘The Baddy’ Pimblett is in action for the first time since suffering the first defeat of his UFC career to Justin Gaethje.McGregor is hoping to roll back the years and claim a huge victory with just two fights left on his UFC contract including HollowayGettyUFC Meta RankingsFor all the latest UFC rankings, including stars from the heavyweight and lightweight divisions, check out talkSPORT.com’s full UFC Meta Rankings list.Pimblett lost the chance to claim the interim UFC lightweight title against current champion Gaethje, but can put himself in the driving seat for another title shot with a victory over France’s Benoit Saint Denis.In the final act, McGregor makes his walk to the cage to fight Holloway for the second time in his career.The 37-year-old defeated Holloway at UFC Boston in 2013 and returns to the UFC for the first time in over five years, having broken his leg in his last appearance against Dustin Poirier.UFC 329 is part of the promotion’s annual International Fight Week and is set to be one of the biggest MMA events of all time.