Conor McGregor Announces Retirement?

UFC Featherweight Champion Conor McGregor, arguably the biggest draw in mixed martial arts, has supposedly announced his retirement on Twitter. Earlier today, the UFC fighter unexpectedly posted that he had "decided to retire young" without providing any sort of clarification or follow-up.

I have decided to retire young.
Thanks for the cheese.
Catch ya's later.

— Conor McGregor (@TheNotoriousMMA) April 19, 2016

McGregor is the UFC's current featherweight (a weight class between 136 to 145) champion who rose to fame by defeating then undefeated champion Jose Aldo in 14 second last year. His trashtalking and powerful strikes have gained him a massive fan following, on the level of former UFC Bantamweight Champion Ronda Rousey. Like Rousey, McGregor recently lost his first UFC fight in a shocking upset against Nate Diaz. McGregor was set to face Diaz in a rematch at a higher weightclass for UFC's megaevent UFC 200 in July.

No one, not even respected sports sites can tell if McGregor is serious or if he's simply engaging in another round of his famed pre-match psychological warfare. If his retirement is for real, this is a huge loss for the UFC, as they were hoping for UFC 200 to be one of their biggest pay per views in history.