WWE has confirmed it on their website
Finn Bálor injured at SummerSlam
Also I find it ironic that they ban the curb stomp but the buckle bomb has injured 2 people now
Oh, man. Bummer.
I was hoping this would end up being a BS report, but damn... It's legit and it sucks! Talk about a shit luck. Hoping he isn't out for long. Get well soon, Finn!