Getting wrestling is like getting fans, it only works when the effort is sincere. Whether or not former UFC heavyweight bruiser Greg Hardy makes a legitimate attempt to improve his ground game following a three-fight losing streak — with all three losses coming by way of knockout — remains to be seen, but it sounds like the door to his Octagon return remains open. “The best organization I’ve ever been a part of, not even second to the NFL,” Hardy told Chris Van Vliet (transcribed by Farah Hannoun). “They hit me up, my contract was already up so we knew…