Mixed martial arts (MMA), sometimes referred to as cage fighting, no holds barred (NHB), and ultimate fighting, is a full-contact combat sport based on striking, grappling and ground fighting, incorporating techniques from various combat sports including boxing, kickboxing and martial arts from around the world

MMA 混合格鬥所推崇嘅，係一種無規則形式嘅格鬥競技，即所謂嘅 No holds barred（NHB），但由於No holds barred 呢個叫法畀人感覺好似爛仔打交咁，為咗畀呢種格鬥形式更有運動意義，所以先改叫做「Mixed martial arts」混合格鬥。