UFC Fight Night 37: Gustafsson vs. Manuwa was a mixed martial arts event held on March 8, 2014, at The O2 Arena in London, England. A bout between Alexander Gustafsson and Jimi Manuwa headlined the event. UFC President Dana White initially announced that a bout between Gustafsson and Antônio Rogério Nogueira would be headlining the event. However, just 5 days after the fight was announced news came that Nogueira had to withdraw from the bout due to an injury. Later, reports came that said that Nogueira had never agreed to take the fight against Gustafsson at all.

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