Ranking the 4 Best Options for the UFC 300 Main Event

UFC 300, which is set for April 13 in Las Vegas, is now less than two months away, and there is still a gaping hole in the lineup.

Head to the promotion's website, and it's clear as day: the headlining bout is still listed as TBD vs. TBD.

Considering the landmark card is expected to be one of the biggest in the promotion's history, that's a bit surprising—and in the eyes of some fans, very disappointing.

The good news is that UFC CEO Dana White and his team are hard at work finding a suitable main event for the card. They're having some difficulty, as most of the UFC's biggest stars are booked up with other obligations, but there is still time for the promotion to put something special…