WWE Spoilers: Final card for SummerSlam 2017

What's in store for the 30th annual SummerSlam? Who will Brock Lesnar defend the Universal Championship against at "The Biggest Event of the Summer"? Who will go one-on-one for the first time ever to decide the WWE Championship? What other championships will be on the line and who will face off in grudge matches at the four-hour extravaganza? What does WWE have in store for the two-hour SummerSlam Kickoff?