Tony Ferguson hadn't lost since 2012, then he was defeated by Justin Gaethje in a bout for the interim UFC Lightweight Championship at UFC 249 in May.
Ferguson had won 12 consecutive fights until The Highlight beat him via fifth-round TKO in a bout that earned Fight of the Night honors.
Now, the 36-year-old appears focused on doing what it takes to get back into the lightweight title picture.
Gaethje, the interim champion, is set to take on UFC lightweight champion Khabib Nurmagomedov at UFC 254 on Oct. 24 to determine who is the undisputed champion.