Since their WWE debut as part of the Shield in late 2012, Roman Reigns and Dean Ambrose have had each others back. When the trio disbanded in mid-2014, Ambrose and Reigns remained tightly bonded, referring to each other as brothers. Theyve battled Evolution, the Wyatt Family, the Authority and the League of Nations together. Now, however, Ambrose and Reigns will face off against each other (and Brock Lesnar) at Fastlane with a WrestleMania main event and WWE title shot on the line. The two squared off for the vacant WWE World Heavyweight Championship at Survivor Series, but this would arguably be much bigger. A lot of fans assumed that either Roman or Dean would have turned on the other at Survivor Series, but that didnt happen.But with the stakes higher, could we finally see these brothers finally turn on each other? Or at least get a little competitive?