Alistair Overeem is a Dutch mixed martial artist and former kickboxer, known for his impressive career in various combat sports. Born on May 17, 1980, in Haarlem, Netherlands, he has competed in organizations like UFC, Pride Fighting Championships, and Strikeforce. Overeem is recognized for his striking skills and has held multiple championships, including the K-1 World Grand Prix title. Overeem began training in martial arts at a young age and has a background in Muay Thai and Brazilian Jiu-Jitsu. He is notable for his size and strength, often competing in the heavyweight division. Overeem has faced many top fighters throughout his career, making him a prominent figure in the world of mixed martial arts.