In the months leading up to Wrestlemania 32, it seemed highly possible that The Rock would get involved with Roman Reigns at the big show and his WWE World Heavyweight Championship Match against Triple H.
The Rock, however, wound up interacting with The Wyatt Family and stayed far away from his cousin. “The Most Electrifying Man in All of Entertainment” was kept away from Reigns for a specific reason.
The Rock’s business team wanted him kept away from Reigns due to potential heat. They didn’t want their client anywhere near Reigns and the fans booing him out of the building.
Triple H was really pushing for Michaels to referee the match, but the angle was never shot. Vince McMahon decided against it because he wanted Reigns to win the WWE World Heavyweight Championship without any help whatsoever. They clashed on it, but McMahon obviously won out.
Michaels had gotten into such great shape because he thought he might be used as a special guest referee in a long match, which takes a fair bit of cardiovascular conditioning.