Photo of Amell training hard for SummerSlam, Steve Austin vignette, new NXT theme song

Amell joins Neville in a match against Stardust and King Barrett

The multiverse has shattered and the biggest crossover in WWE history will take place at SummerSlam when nefarious evildoers "The Prince of Dark Matter" Stardust and "The Bare-Knuckle Brawler" King Barrett join forces to battle "The Man That Gravity Forgot" Neville and DC Comics' Green Arrow – Stephen Amell. The match gets official after months of taunting and verbal battles in social media. Amell, of course, is no slouch when it comes to physicality, the “Arrow” star has the athletic ability and endurance to hold his own in a fight, especially with Neville in his corner. It appears the actor was in the ring training for his WWE SummerSlam match today. He tweeted the following photo:

pic.twitter.com/XNsZP9M63h

— Stephen Amell (@amellywood) August 13, 2015

Peyton Royce, Billie Kay and "The Hype Bros." Zack Ryder and Mojo Rawley all debuted new theme songs at tonight's WWE NXT TV tapings.

Below is the latest "Book of Austin" vignette with Steve Austin to promote the upcoming WWE 2K16 video game.