10 WWE 2016 Spoilers We Already Know

6. John Cena vs. Roman Reigns Will Headline SummerSlam

John Cena's return to Monday Night Raw saw him square off with Alberto Del Rio in the night's main event. What fans did not witness at home was the post-match confrontation between the leader of the Cenation and current WWE World Heavyweight champion Roman Reigns, the first hints of a WrestleMania showdown between the two babyface stars. With a torn rotator cuff forcing Cena out of action and onto the sidelines, those plans for the grandest stage in sports-entertainment have been tabled, at least for the time being. Cena is all but certain to be back in time for SummerSlam in August and, with that show serving as the second most important on the WWE calendar, the company will trot out the gigantic main event match for the Biggest Party of the Summer. It will be the biggest test of Reigns' career, a showdown with the man he looks to supplant. Whether he defeats Cena clean in the center of the ring and establishes himself as the top dog in the industry or falls to the legendary performer, proving that the 15-time champion is unwilling to give up his spot at the top of the roster just yet, is the question.