Answer
In 2020, Gaethje defended his UFC Lightweight Championship for the first time when he defeated Tony Ferguson via fifth-round TKO. This was a highly anticipated fight, as both fighters were considered to be among the best lightweights in the world. Gaethje entered the fight as the champion, while Ferguson was the No. 2-ranked lightweight. The fight was a back-and-forth affair, with both fighters landing heavy strikes.