K-1 veterans Jan "The Giant" Nortje and Ray Sefo have joined Xtreme Couture in Las Vegas, the gym announced Monday.

The South African born Nortje was victorious this past Saturday, stopping Bob Sapp in 55 seconds at Strikeforce: Strikeforce At The Dome in Tacoma, Washington.

Sefo of New Zealand competed once in mixed martial arts in July 2005, knocking out judoka  Kim Min Soo with a kick to the head. According to the Xtreme Couture blog, Sefo was offered a fight last week against Mirko "Cro Cop" Filipovic for DREAM 1 on March 15, but Sefo turned it down due to the short notice.

Source: www.mmafighting.com