After Chris Jericho sickeningly smashed Dean Ambrose’s potted plant over his head, no one has seen or heard from The Lunatic Fringe. Based on his past encounters with the likes of Seth Rollins, Bray Wyatt, Kevin Owens and Brock Lesnar, Ambrose has, at times, seemed impervious to pain. And yet, this attack seems to have — at least momentarily — sidelined the unstable Superstar. Will Ambrose appear on Raw, or has “The Best in the World at What He Does” put the former host of “The Ambrose Asylum” on indefinite hiatus?