Alex Sandro Silva Pereira is a Brazilian professional mixed martial artist and former kickboxer. He currently competes in the Light Heavyweight division in the Ultimate Fighting Championship (UFC) where he is the current UFC Light Heavyweight Champion and a former UFC Middleweight Champion. He is the ninth fighter in UFC history to become champion in two different weight divisions and the first to become champion in both the middleweight and light heavyweight divisions of the organization. Pereira is the only known fighter to be a two-division world champion in MMA and kickboxing and is regarded as one of the greatest combat athletes of all time.