PREVIEW: WWE SMACKDOWN LIVE - SEPTEMBER 19, 2017

As the "red brand" prepares for its PPV No Mercy on Sunday, the "blue brand" continues to roll towards its PPV Hell In A Cell that is 3 weeks away. Here's what you need to know to prepare for tonight's episode:

- AJ Styles will defend the United States Championship against Baron Corbin tonight

Since the SmackDown LIVE after SummerSlam, Baron Corbin has been after AJ Styles and his United States Championship. With that being said, after weeks of assaults and back-to-back confrontations, these two will clash with the championship on the line.

- How will Shane McMahon respond to Kevin Owens' vicious assault on his father last week?

After the vicious attack portrayed by Kevin Owens on Mr. McMahon last week, the Comissioner of SmackDown LIVE Shane McMahon will address the assault on his father, 3 weeks before facing the former United States Champion inside the Hell In A Cell.

Adding to this is Natalya holding a "Celebration of Women" after retaining her SmackDown Women's Championship last week during "Sin City" SmackDown LIVE, The New Day celebrating their 4th reign as Tag Team Champions that started last week in Las Vegas, and WWE Champion Jinder Mahal addressing his controversial comments regarding Shinsuke Nakamura's personality.