2013 is underway and the UFC has officially begun ranking fighters, including their own pound-for-pound rankings.
There has already been slight movement on the list, but many of them have yet to step inside the Octagon. A quarter of the year is nearly complete, and there is a lot of time for new faces to emerge on the list.
Several members are locks to retain their position. These elite fighters may only fight twice in a year, and a few have already had their first fight of the year. Others have favorable fights lined up that will see them retain their spot, and a couple can remain on the list even with a quality loss.
Anything can happen in this sport, and there is still a lot of fighting left to happen.
Here are three fighters that are the most likely to fall out of the pound-for-pound rankings by year's end.