On June 8, 2010, Zack sustained a major injury while hack squatting 700lbs. In both knees he tore his patella tendon. He underwent surgery only two days later to have the detached tendons repaired. Nutrex stands fully behind Zack and supports him to help ensure a speedy and complete recovery on his journey back to the stage as an IFBB Pro. Both Zack and Nutrex felt it would be beneficial to document the Underground Monster's recovery process, struggles and achievements along the way.