#1 Becky attacks Charlotte after her loss
Becky Lynch vs Ronda Rousey was the most anticipated match of the night, and it could have been the main event. But due to an accident during Smackdown's invasion of RAW, Becky Lynch is not able to compete in the match.
As Becky's replacement, Charlotte will now represent Smackdown and take on Ronda Rousey. This match was supposedly scheduled to headline Wrestlemania, but now could be the main event of Survivor Series.
With Becky out of picture, there's no way a champion of Rousey's stature would take the loss. It would also keep Rousey undefeated until Wrestlemania.
As Becky herself chose Charlotte to take her place in the match, she would be disappointed with Charlotte not being able to win the match against her rival from the red brand. Becky could then ambush Charlotte from behind and lay her down. As Becky is injured, this would protect her from taking the bumps. She would close the show with Charlotte down and out.