UFC on Fox: Johnson vs. Reis was a mixed martial arts event produced by the Ultimate Fighting Championship held on April 15, 2017, at the Sprint Center in Kansas City, Missouri.

T-Mobile Center is a multi-purpose arena in downtown Kansas City, Missouri, United States. It is located at the intersection of 14th Street and Grand Boulevard on the east side of the Power & Light District. It has effectively become the city's primary indoor arena, a role previously held by Kemper Arena, which had been built in 1974 a few miles away in the West Bottoms neighborhood.