Rob Gronkowski started off as the WrestleMania host. As the show went on, he decided that simply was not fulfilling enough.
In between the matches, Gronk decided to jump off the balcony and landed on Mojo Rawley and other wrestlers. He punned Rawly and became the latest WWE titleholder.
In addition. Gronk has 3 championships with the New England Patriots. Way to add to the resume Gronk!