After holding fifteen fights last weekend, the UFC returned to Las Vegas with an eight fight card for UFC Fight Night 173. A women’s bantamweight fight between former champion Holly Holm and Irene Aldana was originally scheduled to headline. Aldana was entering the fight coming off a knockout win over Ketlen Vieira as she looked for a big win over Holm. However, she tested positive for COVID-19 in the weeks leading up to the fight, resulting in her removal. As a result, the main event was changed to a three round middleweight fight, due to the short notice.