Heading into the offseason, the Oakland Raiders needed to add some more depth at cornerback. Gareon Conley was the only “proven” cornerback on the roster, and he has started just 14 career games in the NFL. To help with that need, the team signed defensive back Lamarcus Joyner, who will likely be the team’s nickel cornerback on passing downs and will be their starting free safety.

In the second round of the 2019 NFL draft, Oakland selected Clemson cornerback Trayvon Mullen, and he projects to be the team’s No. 2 corner soon, rather than later. However, in the fourth round, the Raiders took another defensive back who has the upside to be one of the best cornerbacks in the league in Isaiah Johnson.

Johnson was a combine superstar, testing in the 95th percentile for athleticism, according to 3sigmaathlete.com. Johnson has elite size, speed, and agility, making him the ideal selection in the fourth round.

According to Pro Football Focus, Johnson could prove to be one of the biggest draft steals of the year. Take a look at their thoughts on the former Houston wide receiver-turned-cornerback:

Johnson was seen as one of the draft’s biggest boom-or-bust prospects, though securing him in the fourth-round eliminates much of the bust risk. That low investment could pay big dividends with Johnson’s traits. At 6-foot-2, 208 pounds with 33” arms, a 4.40-second 40-yard dash, 11′-1″ broad jump, 6.81 three-cone and 4.06 short shuttle, Johnson is how you’d build an ideal cornerback. He simply needs some seasoning after moving to corner from receiver only two years ago.

One of the best things Oakland did this offseason was that they rebuilt their cornerback depth chart. Now, they can “stash” a player like Johnson on the bottom of the roster, and he won’t have to play much, if at all as a rookie.

If Johnson can continue to improve his technique and become a better/stronger tackler over the next few seasons, there is no reason he can’t develop into a starting-caliber cornerback in the NFL. And with that athletic profile, don’t be shocked if he develops into much, much more.