Complex sentence: Darren Michael Jackson (born in Orsett, Essex, UK in 1972) is a British mixed martial arts fighter and former unlicensed boxer and bare-knuckle boxer.
Split into simpler sentences: Darren Michael Jackson (born in Orsett, Essex, UK in 1972) is a British mixed martial arts fighter. Previously he also fought as an unlicensed boxer and bare-knuckle boxer.