At MFC 37 on May 10th, Jason Zentgraf has the opportunity to extend his 7-1 MMA record. A grappling specialist who has won all of his bouts by submission, Zentgraf is facing another skilled grappler in Luke Harris, who also has all of his victories by submission. MMA Oddsbreaker’s Frank Trigg recently spoke with Zentgraf prior to this bout, take a look here: