UFC 289: Nunes vs. Aldana was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on June 10, 2023, at the Rogers Arena in Vancouver, British Columbia, Canada.

[2] The event marked the promotion's 32nd overall visit to Canada and sixth to Vancouver, returning to the country for the first time since UFC Fight Night: Cowboy vs. Gaethje in September 2019.

[3] However on May 2, Peña pulled out due to broken ribs and was replaced by Irene Aldana, who was scheduled to headline UFC Fight Night: Dern vs. Hill in a rematch against former title challenger Raquel Pennington.

The two fighters were scheduled to face each other pre-UFC at ARES FC 2 in October 2020, but the event was canceled due to COVID-19 complications.

[14] However, the bout was scrapped for unknown reasons and Almeida was instead scheduled to face Pat Sabatini at UFC on ESPN: Vettori vs.