LAS VEGAS, NEVADA - AUGUST 05: Jessie Rosas poses for a portrait during a UFC photo session on August 5, 2026 in Las Vegas, Nevada. (Photo by Mike Roach/Zuffa LLC via Getty Images) | Zuffa LLC via Getty ImagesJessie Rosas, the older brother of UFC bantamweight phenom Raul Rosas Jr., was scheduled to make his Octagon debut opposite Miles Johns as part of the upcoming UFC Vegas 120 event this weekend in Las Vegas. Unfortunately, a wound to his forehead had skittish doctors unwilling to clear Tachidito for competition.So what happened?Doctor says its herpes, which hes wrong, but he didnt want to admit hes wrong and didnt clear him to fight, the younger Rosas wrote on social media. We know its just a mat burn but theres nothing we can do to change this doctors mind.Better safe than swollen.Replacing Rosas, who will no doubt return for another shot later this year, is Gianni Vazquez. Kriptonita previously fought for UFC in a one-and-done appearance at UFC Vegas 113 earlier this year. The Johns bout has been bumped up to featherweight to account for the short-notice call up on behalf of Vazquez.To see the rest of the UFC Vegas 120 lineup click here.