Paulo Costa | Photo by Chris Unger/Zuffa LLC via Getty Images Paulo Costa needs a win Saturday if hopes to make an important callout. The one-time middleweight title challenger faces Roman Kopylov on Saturday in the co-main event of UFC 318 in New Orleans and he enters the bout with plenty of motivation. Not only is he mired in a 1-4 slump, Costa is already looking ahead to a fight with Khamzat Chimaev and he knows if he wants mic time afterward he has to have his hand raised first