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After the dissolution of The Shield in June 2014, Reigns (now a singles wrestler) was quickly inserted into world title contention that month, and he headlined the next two pay-per-views; the first when, two weeks after Rollins' betrayal, Reigns won a battle royal on the June 16, 2014, episode of Raw to gain a spot in the vacant WWE World Heavyweight Championship ladder match at Money in the Bank, but failed to win the title during the main event match.
The second pay-per-view was July 20's Battleground, where Reigns again unsuccessfully challenged for the world title, this time in a fatal four-way main event match (also involving Kane, Randy Orton and defending champion John Cena).
The following night on Raw, Reigns started a feud with Randy Orton, which led to a match between the two, on August 17, at SummerSlam, where Reigns defeated Orton.
Meanwhile, Reigns' former team-mates Dean Ambrose and Seth Rollins had been feuding over Rollins' betrayal, with Rollins beating Ambrose in five matches and ultimately injuring Ambrose in the storyline.
This led to a feud between Rollins and Reigns, where a singles match was set up for Night of Champions.
However, six days before the pay-per-view, Reigns cleanly defeated Rollins in a singles match on Raw.
Then, Reigns developed a legitimate incarcerated hernia which required surgery a day or two prior to Night of Champions, and as a result, Rollins was declared the winner via forfeit, while Reigns was ruled out of action indefinitely.
Reigns returned to WWE television on the December 8 episode of Raw, accepting the 2014 "Superstar of the Year" Slammy Award.
Six days later at TLC: Tables, Ladders and Chairs, when Big Show interfered in John Cena's match against Seth Rollins, Reigns attacked both Big Show and Rollins, helping Cena win.
This started a feud between Reigns and Big Show, in which Reigns defeated him multiple times by countout and disqualification.
On January 25, 2015, Reigns, entering at number 19, won the 2015 Royal Rumble match by eliminating the other entrants in the final four: Big Show, Kane and lastly Rusev.
The following night on Raw, Reigns acknowledged being part of the Anoaʻi family for the first time on WWE television.
On the February 2 episode of Raw, Reigns suffered his first pinfall loss in a singles match on the main roster when Big Show defeated him after interference from Rollins.
Reigns was then forced to defend his WrestleMania title shot against Daniel Bryan in the main event of Fastlane, and succeeded in doing so after beating Bryan via pinfall.
Post-Fastlane, Bryan and Paul Heyman endorsed Reigns with "two shockingly transparent promos... attempting to illustrate Reigns' greatness".
On March 29, at WrestleMania 31, Seth Rollins cashed in his Money in the Bank contract while Reigns' main event match with Brock Lesnar was in progress, turning it into a triple threat, which Reigns lost when he was pinned by Rollins.
In April, Reigns re-ignited his feud with Big Show, which culminated in a Last Man Standing match at Extreme Rules, where Reigns defeated Show.
In May, at Payback, Reigns once again failed to win the world title from Rollins in a fatal four-way main event that also involved Orton and Ambrose.
On June 14, at Money in the Bank, Reigns competed in the Money in the Bank ladder match, which he failed to win after Bray Wyatt interfered and attacked him.
Around a month later, Wyatt defeated Reigns at Battleground, after former Wyatt Family member Luke Harper attacked Reigns.
On the August 6 episode of SmackDown, Wyatt accepted Reigns' challenge to a tag team match at SummerSlam, with Reigns and Ambrose facing Wyatt and Harper.
Reigns pinned Wyatt at the event, and the following night on Raw, in a rematch, Reigns and Ambrose was attacked by Wyatt's new ally, the debuting Braun Strowman.
In September, at Night of Champions, Reigns and Ambrose teamed with Chris Jericho and were defeated by Wyatt, Harper and Strowman.
The feud between Reigns and Wyatt ended after their Hell in a Cell match at the Hell in a Cell pay-per-view on October 25, in which Reigns was victorious.
