|Martin was a solid contributor on an Oklahoma State team that won a Big 12 regular-season title. In his senior year, he was third with 74 tackles, including 55 solo. Considered one of the better safety options in this year's draft class, Martin didn't participate in the NFL combine because of a knee injury. That left teams unable to see his speed and agility - two of his biggest assets. Martin is an aggressive defender in open space with good instincts. He reacts to plays well and has the ability to recover from broken plays. However, Martin doesn't have outstanding athleticism and is prone to mental mistakes. He doesn't hold up against the run well and needs to improve on his strength. He had 19 reps in the bench press at the NFL combine, tied for seventh among safeties. As far as the knee injury, Martin said it was a pinched nerve with fluid on the knee - not something that would be considered serious. Martin, who also has experience on special teams, has late-round value based on his productivity and stability with the Cowboys.