UFC Fight Night 271 Adesanya vs Pyfer

UFC Fight Night: Adesanya vs. Pyfer (also known as UFC Fight Night 271) is an upcoming mixed martial arts event produced by the Ultimate Fighting Championship that is scheduled to take place on March 28, 2026, at the Climate Pledge Arena in Seattle, Washington, United States. Background The event will mark the promotion's fifth visit to Seattle and first since UFC Fight Night: Cejudo vs. Song in February 2025. A middleweight bout between former two-time UFC Middleweight Champion Israel Adesanya and Joe Pyfer is scheduled to headline the event. A women's strawweight bout between Nicolle Caliari and promotional newcomer Caroline Foro was originally scheduled for this event. However, Caliari withdrew for undisclosed reasons and was replaced by Stephanie Luciano. Foro then withdrew as well and was replaced by Alexia Thainara. According to Foro's team, she tested positive for a diuretic that is not on the approved substance list during an out‑of‑competition drug test earlier in the year, which they stated was not taken intentionally. Subsequently, Luciano withdrew due to an undisclosed injury and was replaced by Bruna Brasil, setting up a rematch between Brasil and Thainara. The two previously fought at an independent promotion in November 2019, where Brasil won by guillotine‑choke submission in the third round. A heavyweight bout between Marcin Tybura and Valter Walker was scheduled for the event. However, Walker withdrew due to a foot fracture and was replaced by promotional newcomer Tyrell Fortune. A welterweight bout between The Ultimate Fighter: Live lightweight winner Michael Chiesa and Carlston Harris was scheduled for the event. However, Harris withdrew due to visa issues and was replaced by Niko Price. The bout is expected to serve as Chiesa's retirement fight. A featherweight bout between Road to UFC Season 3 featherweight winner Zhu Kangjie and fellow promotional newcomer Márcio Barbosa was scheduled for the event. However, Zhu withdrew due to a broken nose, so the bout was cancelled.