Heading into Saturday’s Ultimate Fighter 18 Finale, we should already have some idea of what we’re going to see in the main event. After all, headliners Gray Maynard and Nate Diaz have (unofficially) met twice before. The first was an "exhibition" win for Diaz, but when they met for real, it was a close, contested fight which Maynard squeaked out in a split-decision. Since then, both of their careers have seen some ups and downs, but neither has really pulled apart from the other. So don’t expect a blowout this time around, as they try to finally settle the score.