Each year, NFL franchises enter training camp with a variety of players on the “roster bubble.” This year is no different for the Detroit Lions and the multi-billion-dollar league’s 31 other organizations. Safety Ian Kennelly, an undrafted free-agent signing of the Lions out of Grand Valley State, is one of the many aforementioned players who will have to prove his worth this summer. Most notably, the Macomb, Mich., native recorded a pass breakup that fired up both sides of the ball at the Lions’ Allen Park practice facility.