WFA: King of the Streets was a mixed martial arts event held by World Fighting Alliance on July 22, 2006 at the Great Western Forum in Los Angeles, California, USA. This would be the last event held by the World Fighting Alliance. The event was seen live on pay per view in the United States via iN DEMAND, and is the only fight in the 21st century to feature former UFC champion Bas Rutten. Rutten's win over Warpath capped a 22 fight win streak, dating back to 1995, to end his career.

Sebastiaan "Bas" Rutten is a Dutch-American actor, former mixed martial artist, kickboxer and professional wrestler. As a kickboxer, he fought 16 times, winning the first 14 matches by knockout, 13 in the first round, and losing his final two fights, one of them against Frank Lobman for the European Muay Thai title in 1991, with Rutten losing by KO in the first round. In MMA, he was a UFC Heavyweight Champion and a three-time King of Pancrase world champion. After his loss to Ken Shamrock in 1995, he finished his MMA career on a 22 fight unbeaten streak.