On the heals of a 27 man recruiting class, it is no secret that Ohio State has signed a SEC-esque volume pf players during his short tenure (last 4 years were 27+23+24+25 = 99, with several 5th year seniors from the 2011 class still on the roster as well). During his signing day press conference, Urban Meyer named three players who would leaving the team due to career ending injuries, Armani Reeves, Devin Bogard, and Ron Tanner. Bogard suffered 3 ACL injuries between high school and college, most recently this past fall vs Rutgers, so one could understand why he why he would hang it up. Reeves saw the field at nickleback, and was said to have suffered from concussions, most recently in the Big Ten Championship game vs Wisconsin. Ron Tanner's career was pretty much relegated to special teams, but he was said to have had a "foot injury" that kept him out of a couple of games.
What is curious about the medical disqualifications of Reeves and Tanner, however, is that both were seemingly healthy enough to participate in the CFP National Championship game against Oregon last month. Player participation link. So if they were healthy enough to safely see the field in January, and were not seen leaving the field injured, under what circumstances could their medical conditions now preclude them from being able to play football again?