[3][4] Their first fight took place at UFC 173 which ended in a fifth round technical knockout victory for Dillashaw that won him the title.

The first of which was UFC 177, where Barão withdrew from the bout on the day of weigh-ins, as he had to be admitted to a hospital as a result of his attempts to cut weight.

[9] A lightweight bout between Danny Castillo and Rustam Khabilov that was previously scheduled for UFC 182 was expected to take place at this event.

However, Koch pulled out of the bout in late June due to an injury and was replaced by promotional newcomer Andrew Holbrook.

However, Neto pulled out of the bout in early July due to an injury and was replaced by promotional newcomer Dominique Steele.