#3. Seth Rollins vs WWE's Artist Shinsuke Nakamura
Shinsuke Nakamura has only recently joined the debate when it comes to an opponent for Seth Rollins at WWE's WrestleMania pay-per-view. This came after Smackdown on Friday night, when Seth Rollins attacked Cesaro mid-way through the match against Murphy.
After Rollins came through the curtain, Nakamura was waiting and the two men had a tense staredown. After all, Cesaro and Nakamura were once Tag Team Champions. Although they have recently gone their separate ways, it appears that the company has decided to have Nakamura watch his old friend's back.
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Shinsuke Nakamura hasn't been used effectively over the past few months. A feud with someone of Seth Rollins' caliber could allow him to finally gain some much-needed recognition on SmackDown.
This recent segment could also be the WWE management setting up a match for Nakamura at Fastlane. This could, in turn, lead to another match between the two men at WrestleMania but with an added stipulation if Fastlane's match doesn't end clean.