Here we go again. The Texas Department of Licensing and Regulation declined to license Mark Martinez due to incomplete medical paperwork, and Karl Knothe has stepped in to fight Bobby Lashley at Shark Fights 21. MMAjunkie.com today confirmed the news with a source close to the event after an initial report by Sherdog.com. The heavyweight title bout headlines the event, which takes place Nov. 11 at Fair Park Coliseum in Lubbock, Texas. The event airs via delay on FUEL TV on Dec. 23.