Johnson began his career at Alabama as a walk on running back, but as emerged as one of the finest safeties in college football. He spent his freshman season as a special teamer, recording eight tackles. As a sophomore, he played in 11 games while starting four and totaling 33 tackles, 1.5 for loss. Johnson had a breakout season as a junior, earning All SEC honors after finishing the season with 81 tackles, 5.5 for loss, a sack and six interceptions.
Strengths
Johnson is one of the most active and aggressive safeties in college football. He flies around the field looking to make a big play on every snap. His rise from walk on to leader of a title contending defense has been due to his work ethic and intensity. Johnson continues to get better every year, and shows a nose for the football. He plays bigger than his size indicates because of his aggressiveness and toughness, and does a good job of making plays near the line of scrimmage. In coverage, he shows the awareness to locate the ball in the air and keep the receiver from hauling in the pass.
Weaknesses
There really is no great physical gift that Johnson possesses. His size is average at best for a safety, and that could cause problems in the NFL. He has a thin build which could give him problems in coverage and run support. With the way he throws his body around the field, his frame could raise durability questions as well. Johnson is also not an amazing athlete with blazing speed to make up for the average size.
Future
Johnson may not compare to other safeties as prospects based on physical talent, but he makes up for it with his instincts and toughness. If he can add a few pounds to his frame he has the ability to surprise in the NFL and outplay some of the more talented players. Johnson may only go in the middle rounds in April, but do not underestimate the intangibles he brings. At the very least, Johnson should be a solid reserve safety and quality special teamer, but he could develop into more in the right situation.