The event marked the promotion's third visit to Winnipeg and first since
UFC on Fox: Lawler vs. dos Anjos in December 2017. A welterweight bout between former
UFC Welterweight Championship challenger
Gilbert Burns and
Mike Malott headlined the event. A flyweight bout between
Road to UFC Season 3 flyweight winner Choi Dong-hun and undefeated prospect André Lima was scheduled for this event. The bout was originally scheduled to take place at
UFC 327 one week before, but was moved to this event for undisclosed reasons. In turn, Choi withdrew due to an injury, so the bout was scrapped and Lima was booked for a bout at a later date. A featherweight bout between
Choi Doo-ho and
Gavin Tucker was briefly linked to this event. However, Tucker had not signed a bout agreement and subsequently announced his retirement from mixed martial arts due to injuries. Mitch Raposo and Allan Nascimento were scheduled to meet in a flyweight bout at the preliminary card, but Raposo was forced off just two days before the event due to illness. They are expected to meet later in June at
UFC Fight Night 279. At the weigh-ins, a bantamweight bout between
John Castañeda and promotional newcomer Mark Vologdin was changed to 139-pound catchweight bout, with Vologdin coming in at 138.5 pounds, while Castañeda weighing in at 139 pounds. ==Results==