A new era is underway on defense for the Miami Dolphins as first year head coach Jeff Hafley begins molding a unit filled with emerging young talent, established veterans, and intriguing newcomers. General manager Chris Grier spent the past two offseasons rebuilding the defense from the trenches outward, emphasizing size, athleticism, versatility and physicality.
After relying heavily on rookies throughout 2025, Miami enters 2026 believing those growing pains will translate into one of the league’s ascending defensive units. With All-Pro leaders like Zach Sieler and Jordyn Brooks anchoring the defense, the Dolphins have surrounded them with former high draft picks, promising rookies and experienced veterans hoping to make the defense one of the team’s biggest strengths.
Defensive Line: Young Foundation Ready to Break Out
The biggest storyline entering camp is whether Miami’s youthful defensive line can take the next step.
The Dolphins made a major investment in the position during the 2025 NFL Draft by selecting three defensive tackles Kenneth Grant, Jordan Phillips and Zeek Biggers and immediately threw them into significant roles. Their combined 1,233 defensive snaps accelerated their development and created optimism for 2026.
Leading the charge is Kenneth Grant, who finished his rookie campaign looking every bit like the dominant first-round talent Miami envisioned when selecting him in the top 15. Over the final five games, Grant produced 14 quarterback pressures and 10 run stuffs, ranking among the NFL’s most productive defensive tackles during that stretch. His combination of elite size, surprising athleticism and disruptive quickness gives Miami a potential cornerstone for years to come.
Jordan Phillips quietly became one of Miami’s most dependable run defenders as a rookie. His immense power at nose tackle consistently occupied blockers, freeing linebackers to attack downhill. Coaches have praised Phillips throughout offseason workouts, believing Year 2 could bring another significant leap.
Zeek Biggers developed into an important rotational piece late in the season. Standing with nearly 35-inch arms, Biggers possesses rare length that allows him to line up across multiple spots in Miami’s odd man fronts. His versatility provides defensive coordinator flexibility in various personnel packages.
Veteran Zach Sieler remains the heartbeat of the defensive line.
As the youngsters gained confidence, Sieler’s production exploded. The veteran recorded 10 tackles for loss, marking his third consecutive season reaching double digits currently the longest active streak among NFL defensive tackles. He also added 5.5 sacks, bringing his career total to 35.5, while once again serving as one of the league’s most underrated interior defenders.
The depth behind the starters is considerably stronger than a year ago.
Matthew Butler returns after logging career highs in tackles and quarterback hits before re-signing with Miami this spring. Former undrafted rookie Alex Huntley, who spent last season developing on the practice squad, enters camp looking to earn a permanent roster spot.
The Dolphins also added intriguing rookie talent.
Rene Konga, out of Louisville, brings elite athletic traits after posting one of the most explosive performances ever by a defensive tackle at the NFL Scouting Combine. Meanwhile, Kentucky product Kahlil Saunders arrives after appearing in 51 collegiate games, bringing valuable experience and versatility to the interior rotation.
Edge Rushers: Fresh Faces Bring Competition
Few position groups experienced more turnover than Miami’s edge defenders.
Only Chop Robinson and Cameron Goode return from last year’s primary rotation as the Dolphins aggressively reshaped the room through free agency and the draft. Robinson enters his third NFL season poised for a breakout.
After earning PFWA All-Rookie Team honors in 2024 with six sacks before adding four more last season, Robinson has already established himself as Miami’s most explosive edge rusher. His elite first step and ability to bend around offensive tackles immediately impressed Hafley, who believes Robinson has the potential to become one of the defense’s premier playmakers.
The biggest veteran addition is Josh Uche.
The former Patriots standout joins Miami after spending last season with Philadelphia. Although his role fluctuated, Uche remained an efficient pass rusher, producing 23 pressures on just 142 pass-rush snaps—an impressive 16.2 percent pressure rate. His previous 11.5-sack season in 2022 demonstrates the type of impact he can make in Miami’s aggressive defensive scheme.
Another reclamation project is David Ojabo, whose NFL career has been slowed by injuries. Now healthy, Ojabo hopes Miami can unlock the enormous potential that once made him one of college football’s premier pass rushers.
Former 49er Robert Beal Jr. adds rotational depth and special teams value, while longtime Dolphin Cameron Goode continues serving as one of Miami’s most dependable special teams contributors.
Miami also added several intriguing rookies.
Seventh-round pick Max Llewellyn generated 45 quarterback pressures at Iowa last season and finished his Hawkeye career with 20.5 sacks.
Undrafted free agent Mason Reiger, who finished at Wisconsin after beginning at Louisville, totaled 13 career sacks and 22.5 tackles for loss during college.
Western Michigan standout Rodney McGraw arrives after posting 7.0 sacks and 8.5 tackles for loss during the 2025 season, while Seth Coleman continues his development after signing a futures contract earlier this offseason.
With numerous players competing for snaps, this may become one of training camp’s most competitive position battles.
Inside Linebackers: Brooks Headlines an Elite Group
On paper, linebacker may be Miami’s deepest and most talented defensive position. Everything begins with Jordyn Brooks, who established himself among the NFL’s elite defenders last season.
The first-team All-Pro led the entire league with 183 combined tackles, excelling against the run, in pass coverage and as a blitzer. Brooks’ leadership has become equally valuable, serving as the unquestioned centerpiece of Hafley’s defense after signing a contract extension this offseason.
Veterans Tyrel Dodson and Willie Gay Jr. provide proven experience alongside Brooks.
Dodson handled defensive communication duties last season while earning praise from teammates for his leadership, while Gay remains one of the defense’s most versatile athletes, capable of making plays all over the field.
The future of the position also looks exceptionally bright. Second-round selection Jacob Rodriguez enters the NFL following a remarkable collegiate career that included seven forced fumbles, fifth-place Heisman Trophy voting, and both the Chuck Bednarik Award and Bronko Nagurski Trophy as college football’s top defensive player.
Fourth-round pick Kyle Louis arrives from Pittsburgh after compiling an extraordinary stat sheet featuring 10 sacks, six interceptions and 25.5 tackles for loss during his collegiate career.
Miami also selected Trey Moore, whose versatility allows him to rush the passer or play traditional linebacker. Moore totaled 30.5 career sacks and 50 tackles for loss between UTSA and Texas.
Veteran Ronnie Harrison Jr. continues his transition from safety to linebacker, bringing positional flexibility after appearing in 94 NFL games, while Jackson Woodard provides valuable special teams depth.
This linebacker room combines elite veteran leadership with exciting young talent capable of making immediate contributions.
Secondary: New Faces Looking to Solidify the Back End
Miami’s secondary enters training camp with more questions than any other defensive position, but it also features several exciting young players expected to seize major roles.
The biggest addition is first-round pick Chris Johnson, whom the Dolphins traded up to select in the 2026 NFL Draft. Barring injury, Johnson is expected to immediately claim a starting cornerback position thanks to his elite athleticism, physical press coverage and playmaking instincts.
Returning corners JuJu Brents, Jason Marshall Jr. and Storm Duck all have opportunities to earn significant playing time.
Duck opened last season as Miami’s Week 1 starter before injuries limited him to only two games. A healthy offseason could allow him to reclaim a starting role.
Veterans Darrell Baker Jr. and Marco Wilson provide experienced depth and competition throughout training camp.
Safety appears equally competitive. Dante Trader Jr. is projected to enter camp as one of the starters after an encouraging rookie season, while veteran Lonnie Johnson Jr., Zayne Anderson, and rookie Michael Taaffe will battle for the remaining starting job.
Taaffe arrives with outstanding instincts and football intelligence, qualities that could help him contribute sooner than expected despite entering a crowded competition.
The Dolphins may not have established stars throughout the secondary, but they possess plenty of athleticism, youth and versatility. How quickly this group develops could determine just how high Miami’s defensive ceiling becomes.
Outlook
The Dolphins have clearly committed to building their defense around youth without sacrificing veteran leadership. Zach Sieler and Jordyn Brooks remain the foundation, while Kenneth Grant, Chop Robinson, Chris Johnson and Jacob Rodriguez represent the next generation of impact defenders.
Jeff Hafley’s defensive philosophy emphasizes speed, aggression and versatility, and Miami’s personnel reflects that vision. If the young defensive linemen continue their rapid development, the edge rushers generate consistent pressure, and the revamped secondary finds stability, the Dolphins could field one of the AFC’s fastest-rising defenses in 2026.
Training camp will reveal how quickly the pieces come together, but the talent is in place for Miami’s defense to become the driving force behind the franchise’s new era.
