14Ric Flair’s retirement
In 2008, Ric Flair lost to Shawn Michaels at WrestleMania, and one day after that, his retirement ceremony took place. It was a memorable moment as one of the legendary WWE personas walked out of the ring for the last time. However, just two years later, he came back in TNA, and while this moment isn’t as great as the other one, it is still worth mentioning.