by Ken Pishna – MMAWeekly.com (Reporting by Damon Martin) Shark Fights has been working hard to put its most ambitious fight card to date together pitting UFC veterans Trevor Prangley and Keith Jardine against one another in its Sept. 11 main event, with Rameau Thierry Sokoudjou vs. Houston Alexander as the co-main event.

With just a week to go, however, Shark Fights lost two of its scheduled combatants, Drew McFedries and Marcus Hicks, according to a report from MMAJunkie.com, who also reported that Daniel Straus has already stepped in for Hicks against Karen Darabedyan.

MMAWeekly.com has confirmed that Danillo Villefort has been tapped as replacement for McFedries to face Joey Villasenor.

A Brazilian training with American Top Team, Villefort (11-3) enters the bout on a two-fight streak following a one and done appearance at UFC 101. He defeated Mike Campbell in the WEC before dropping the bout to Jesse Lennox in the Octagon.

Villasenor (27-7) is a former EliteXC middleweight champion, who is currently under contract with Strikeforce and looking to bounce back from a loss to Ronaldo “Jacare” Souza. Jacare won the Strikeforce middleweight championship just one fight after defeating Villasenor.

Shark Fights 13 is scheduled to take place at the Amarillo Civic Center in Amarillo, Texas.