Rookie CB Chris Johnson Is Already the Centerpiece of Miami's Made-Over Secondary
The Dolphins moved up for the San Diego State corner in April. Now Jeff Hafley wants him learning every spot in the back end before training camp.
When the Dolphins traded up to grab Chris Johnson with the 27th pick in April, they were not drafting a rotational piece for the future. They were drafting a Week 1 starter, maybe even the player a rebuilt secondary gets organized around. Six weeks before training camp, that is exactly the role first-year head coach Jeff Hafley is preparing him for.
Why is a rookie in line for such a big role this fast?
Miami's cornerback room emptied out this offseason, and that opened the door wide. Starting corners Jack Jones and Rasul Douglas both left in free agency, and three-year nickel starter Kader Kohou departed as well, stripping the Dolphins of their most experienced perimeter and slot defenders in one stretch. The front office signed veterans Darrell Baker Jr., Marco Wilson, and Alex Austin to steady the depth chart, but those are complementary pieces rather than cornerstones. That left the draft as the real answer at the position, and Miami spent real capital to get its answer. The Dolphins sent picks 30 and 90 to the 49ers to move up to 27 and take Chris Johnson, signaling he was the player they wanted to build around.
What does Jeff Hafley actually want from Johnson?
Versatility, and a lot of it. Hafley has tasked Johnson with learning all three cornerback alignments rather than locking him into a single spot, the kind of assignment a coach only hands a player he trusts to anchor the group. "I think he can win at all three," Hafley said. "And he can take the ball away, and he tackles, and he's aggressive, and I love his play style and he can play inside." The inside note matters given that Kohou's exit left the nickel job open. By asking Johnson to handle outside and slot reps, Hafley is giving himself the flexibility to deploy his best young defender wherever the matchup demands it. For a defense that needs answers in multiple places at once, a corner who can move around is more valuable than one who only does one thing well.
How bad was the Miami pass defense, and can Johnson move the needle?
The numbers from 2025 explain the urgency. Miami generated just nine interceptions, the ninth-fewest in the league, and surrendered a league-high 72 percent completion rate, meaning opposing quarterbacks completed passes against the Dolphins more often than against anyone else. A unit that cannot take the ball away and cannot make throws difficult needs a playmaker, and Johnson's college profile fits the brief. He posted six interceptions and 19 pass deflections at San Diego State and ran a 4.40 in the 40, which quieted the speed questions that had trailed him before the draft. None of that guarantees an immediate fix, and rookie corners get tested early and often. But the last Miami first-round cornerback to start 10 or more games as a rookie was Troy Vincent back in 1992, and the Dolphins are betting Johnson becomes the next.
Players in this story
Sources
- ESPN: Rookie CB Johnson gearing for major role with Dolphins in '26
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