CM Punk will defend his WWE Championship against Sami Zayn during next week’s “WWE SmackDown” in Mexico City.
Punk put the WWE Championship on the line for his third defense against Johnny Gargano during Friday’s “SmackDown,” but once again saw it marred by interference from a another contender. Having captured the title from Sami Zayn in July, he put the title on the line against Cody Rhodes at Sum
