#3 Seth Rollins injured Dean Ambrose

Okay, so it was clearly accidental, but Seth Rollins was actually the reason Dean Ambrose was injured and had to spend the best part of a year on the shelf.
Well, Seth Rollins was clearly aiming for The Bar, but that definitely didn't make life any easier for Ambrose as he spent over nine months unable to compete because of it.
Look who just shut down all of Tony Khan's critics! More HERE.
While no-one else saw it as Rollins injuring Ambrose...maybe the one person who matters did - Dean Ambrose. The Lunatic Fringe may have been holding a grudge ever since the injury and that's why he's been so off with Rollins on RAW over the past weeks, with Ambrose just biding his time.
After all, the last time he and Rollins were anywhere near the Tag Team Championships, Ambrose ended up going under the knife and spending a lengthy time on the shelf.