Season 15, Episode 21 WWE SmackDown
First Aired: May 24, 2013
In an Extreme Rules rematch, Dean Ambrose defends his U.S. championship against Kofi Kingston.
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- Premiered: September 22, 2006
- Rating: None
- Premise: Pro wrestling action featuring the superstars of World Wrestling Entertainment. The series made its debut on UPN in 1999 and immediately became one of the network's most popular programs. (more)