02:49

The Cenation Leader once again forms an uneasy alliance with The Big Dog to take on Team Red's so-called "good brothers."

John Cena and Roman Reigns made their WWE No Mercy bout official by putting pen to paper, but ironically, they might have some miles left in them as a tag team. No sooner had the two Superstars sealed the deal for their Sept. 24 dream match than Luke Gallows & Karl Anderson showed up, spoiling for a fight.

Unsurprisingly, Cena & Reigns weren’t exactly a well-oiled machine when it came to team chemistry, and it was anyone’s guess as to whether they could even co-exist against the former Raw Tag Team Champions. As it turned out, they could. Reigns tagged in to bail Cena out of a bind, and the two ended up hitting a simultaneous Attitude Adjustment to Gallows and Spear to legal man Anderson to both win the match and, perhaps, give each other a taste of things to come.