Loser: Roman Reigns
The feud must continue.
Why?!
Sure, it was only by interference from Dolph Ziggler, who is aiding Baron Corbin for...reasons, but Roman Reigns still lost after being humiliated for so many weeks in a row. Then they brawled to close the show in a pointless segment.
So we can surely expect more bad segments en route to whatever rematch happens between these two, probably at the Royal Rumble.
With Roman Reigns still the likeliest person to meet and dethrone Bray Wyatt at WrestleMania, stuff like this does him no favors. He should have dismissed Corbin and focused solely on the Royal Rumble match, which he'll surely still be entering and might just be favored to win for the second time.
Instead, attention will be elsewhere as the match draws nearer, and it won't be focused on good places, judging by Baron Corbin's track record all year long.