S Isaiah Johnson (Georgia Tech) - Undrafted free agent

Based strictly on signing bonuses, Georgia Tech safety Isaiah Johnson is the Detroit Lions' top 2015 undrafted free agent. He received $12,000 upon signing, putting him atop the Lions' UDFA signing bonus list for 2015.

Measurables

Height: 6-foot-1 | Weight: 202 pounds

Stats

2010: 46 tackles, 3.0 TFL, 1.0 sack, 1 INT, 2 PD, 1 FF

2011: 78 tackles, 3.0 TFL, 1.0 sack, 3 INT, 6 PD, 1 TD

2012: 87 tackles, 4.5 TFL, 1.0 sack, 1 INT, 2 PD, 1 FF, 1 TD

2014: 72 tackles, 3.0 TFL, 1 INT, 5 PD, 2 FF

(via Sports-Reference.com)

Random fact

Not only does Johnson share a last name with Lions wide receiver Calvin Johnson, but both players attended the same college (Georgia Tech) and the same high school (Sandy Creek).

What the experts are saying

From The Rumble Seat:

Isaiah Johnson is a good safety. He's a guy that will bring a high floor and at the very least be completely solid. The only real question with him is if he will be able to take it to the next level at the NFL. He should definitely provide a team with solid depth, though, and if given a chance, could be a solid contributor at the next level. He will just have to put in the effort needed to show teams that he is willing to work for it.

NFL.com:

Played in space and near the line of scrimmage, but he's best ­suited in a role that limits what is asked of him from a coverage standpoint. His intelligence, work ethic and play demeanor will all work in his favor, but his lack of functional speed and athleticism will not.

Pro Football Focus:

Played 69% of snaps at FS, 17% at SS, and 14% as a slot CB.

Videos

Outlook for 2015

Judging by his signing bonus, the Lions clearly like Johnson. I don't think that's enough to get him on the 53-man roster this year, though. He's likely behind at least Glover Quin, James Ihedigbo, Isa Abdul-Quddus and Don Carey at safety, and I can't envision five safeties making the team at this point in time. As a result, he seems like a probable addition to the practice squad, but if any injuries occur at safety, he could be the first person in line for a promotion to the 53-man roster.

Previous scouting reports

Draft picks: OG Laken Tomlinson, RB Ameer Abdullah, CB Alex Carter, DT Gabe Wright, FB Michael Burton, CB Quandre Diggs, OT Corey Robinson

UDFAs: QB Anthony Boone, RB Zach Zenner, RB Desmond Martin, RB Rasheed Williams, WR Vernon Johnson, WR Jared Haggins, TE Casey Pierce, OG Al Bond, OG Torrian Wilson, LB Kevin Snyder