WWE.com exclusive footage of another attack perpetrated by NXT upstarts Dean Ambrose, Seth Rollins and Roman Reigns, this time at a Grand Rapids TV taping.

WWE.com has obtained exclusive footage showing another attack perpetrated by NXT upstarts Dean Ambrose, Seth Rollins and Roman Reigns, this time at a Grand Rapids TV taping Tuesday night.

A match pitting Santino Marella against Tyson Kidd was suddenly interrupted by the mysterious trio, marking the third consecutive night Ambrose, Rollins and Reigns wreaked havoc on unsuspecting WWE Superstars following back-to-back assaults on Ryback.

Spilling into the ring donning their now-familiar black garb, the three-man crew attacked Marella and Kidd from behind, tossed Santino out of the ring and executed a vicious three-man powerbomb on Kidd. Making their exit, the NXT competitors added final insult to the fallen Marella, literally kicking The Milan Miracle when he was down.

This shocking assault comes in the wake of previous attacks on Ryback Sunday night at Survivor Series and again last night on Raw. Motives remain unknown, and speculation is running rampant throughout the WWE Universe and the locker room as to what these attacks might mean, and to what extent the trio may go next time.

For now, though, Superstars will just have to wonder when they may strike again.