UFC on ABC: Holloway vs. Kattar (also known as UFC on ABC 1 and UFC Fight Island 7) was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on January 16, 2021, at the Etihad Arena on Yas Island, Abu Dhabi, United Arab Emirates. Background The main card marked the first time a mixed martial arts event was broadcast on ABC. It also meant the UFC's first return to network television since UFC on Fox: Lee vs. Iaquinta 2 was broadcast on Fox in December 2018. After hosting nine events behind closed doors at the du Forum amid the COVID-19 pandemic, the UFC made its debut at the newly built Etihad Arena. A limited number of fans were allowed inside the venue, marking the first time since UFC 248 in March 2020 that non-essential event personnel were in attendance. The venue has maximum capacity of over 18,000, but the UFC is expecting to have closer to 2,000 fans for each of the Fight Island's events during the week. A featherweight bout between former UFC Featherweight Champion Max Holloway and Calvin Kattar served as the event headliner. A bantamweight bout between Ricky Simon and Brian Kelleher was initially scheduled to take place at UFC Fight Night: Overeem vs. Sakai, but Simon's cornerman tested positive for COVID-19 and he was forced to withdraw from the event. The pairing was then rescheduled for this event. In turn, Kelleher also tested positive on January 1 and was pulled from the bout. He was replaced by newcomer Gaetano Pirrello and the bout took place four days later at UFC on ESPN: Chiesa vs. Magny. A women's bantamweight bout between former UFC Women's Bantamweight Championship challenger Bethe Correia and Wu Yanan was expected to take place at UFC on ESPN: Hermansson vs. Vettori. However, due to visa issues, they were rescheduled for this event. In turn, Correia had to pull out on January 5 due to appendicitis, which required an appendectomy. She was replaced by promotional newcomer Joselyne Edwards. Muslim Salikhov was scheduled to face Santiago Ponzinibbio in a welterweight bout at the event. However, Salikhov pulled out of the bout in mid-December citing health issues after contracting COVID-19. He was replaced by Li Jingliang. A flyweight bout between former UFC Flyweight Championship challenger Tim Elliott (also The Ultimate Fighter: Tournament of Champions flyweight winner) and Jordan Espinosa was expected to