Invicta FC 45: Zappitella vs. Delboni II is amixed martial arts event headlined by Alesha Zappitella defending her atomweight championship against Jéssica Delboni in a rematch from Invicta FC 44. A bout between Emily Whitmire and Hilarie Rose was scheduled but has since been postponed.

UFC on ESPN 45: Song vs. Simon was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on April 29, 2023, at the UFC Apex facility in Enterprise, Nevada, part of the Las Vegas Metropolitan Area, United States.