This might help you to make a right bet. Gaethje is a base wrestler that did not rely or use his skills lately. What we usually hear about Gaethje - ooohh he has vicious low kicks, watch for them. What I know about Fiziev - his current residence is Thailand and earn for a living by fighting and training with thai boxers. Yes, the guys who rely much on elbows and low kicks. Fizies is 10000% ready against Gaethje low kicks. I would say that Gaethje will be partly disarmed in this fight. Plus Fizies is fast. Fiziev previous fight against RDA, a black belt in BJJ, showed that Fiziev is able to defence against master of subs for 5 rounds, have enough stamina for 5 rounds.