UFC 167: St-Pierre vs. Hendricks was a mixed martial arts event held on November 16, 2013, at the MGM Grand Garden Arena in Las Vegas, Nevada, U.S.[3] The event commemorated the organization's 20th anniversary.

The main event was a UFC Welterweight Championship bout between the champion Georges St-Pierre and #1 contender Johny Hendricks.

[6] However, Natal was pulled from the pairing with Herman in favor of a bout with Tim Kennedy on November 6, 2013, in the event headliner at UFC Fight Night 31.

[8] A bout between Frank Mir and Alistair Overeem was scheduled for this card, but was moved to UFC 169.

However, Drysdale was refused a fighting license by the Nevada State Athletic Commission (NSAC) after an out-of-competition drug test revealed that he had an elevated testosterone-to-epitestosterone ratio of 19.4.