Cowboy 2 (also known as UFC on Fox 17) was a mixed martial arts event held on December 19, 2015, at the Amway Center in Orlando, Florida.

[2] The event was headlined by a UFC Lightweight Championship bout between current champion Rafael dos Anjos and top contender Donald Cerrone.

[3] Germaine de Randamie was scheduled to face Sarah Kaufman at the event.

This marked the third time that Oliveira missed weight in his UFC career.

[10] ^ Oliviera was fined $7,400, 20 percent of his purse for failing to make the required weight for his fight with Myles Jury.