AUGUST 4: Sieler’s deal is now official, per a team announcement. Full terms have not yet emerged, but agent Drew Rosenhaus said during his weekly appearance on Sports XTRA (video link) this new pact will pay out $34MM across the 2025 and ’26 campaigns. With an upgraded cashflow and long-term security, Seiler will look to remain one of Miami’s top players for years to come.
AUGUST 3: The Dolphins are getting ahead on some future contract situations by giving defensive tackle Zach Sieler the new deal he requested despite him having two years remaining on his original deal. Per ESPN’s Adam Schefter, the two sides have agreed on a three-year, $67.75MM extension with $44MM guaranteed. With the new deal, he becomes the highest-paid player on Miami’s defense. 
Sieler’s come a long way since his humble beginnings. Unranked as a high school recruit, Sieler travelled about two hours north to attend college at Ferris State University, where he made the decision to walk on to the football team. After a redshirt year, Sieler helped the Bulldogs win their conference two years in a row in 2014 and 2015. In the latter year, he won the conference’s Defensive Lineman of the Year and National Defensive Player of the Year honors. He repeated those honors in 2016 but opted to sit out the 2017 season, after having earned his degree, to prepare for the 2018 NFL Draft.
Though obviously talented, Sieler was considered a bit of a wildcard after having spent a year away from football. Regardless, he was chosen by the Ravens with the 238th pick of the draft in the seventh round — Ozzie Newsome‘s final pick as the team’s general manager. In an emotional draft day phone call, Newsome informed him of that fact and Sieler told the legendary GM, “I’ll make you proud.”
That pride may not have come right away for Newsome. After appearing in only two games as a rookie, Sieler failed to make Baltimore’s initial 53-man roster in 2019 and ended up on the practice squad. He got signed back to the active roster in October, but the team waived him again two months later.
This time, when he hit the waiver wire, the Dolphins kept him from returning to the Ravens’ practice squad, claiming Sieler the next day. In just three games (including his first career start) to close out the season with Miami, Sieler played more snaps than his entire first year and a half in Baltimore. The Dolphins signed him on for another year and Sieler appeared in every game, starting eight, while tallying 3.5 sacks and 11 tackles for loss.
The disruptive lineman was doing so well that season that he earned himself a two-year, $7.63MM extension partway through the season. In those next two years, Sieler would start 24 of 34 game appearances, notching 5.5 sacks, 13 tackles for loss, and 132 tackles as he blossomed into am eventual full-time starter. In that 2021 season, Pro Football Focus (subscription required) graded him as the third-best interior defender in the NFL.
In 2023, the Dolphins quickly extended Sieler for another three years at $30.75MM. With a year still remaining on his prior deal, this new extension would keep him under contract through the 2026 season. After that contract came through, Sieler really turned it on. Starting every game for the first time in his career, Sieler tallied career highs in sacks (10.0) and tackles for loss (22) while adding 63 tackles, four pass deflections, an interception, a forced fumble, and two fumble recoveries.
Last year, he kept it going. Despite missing two games with injury, Sieler matched his sack total from the prior year while totaling 19 tackles for loss, 55 tackles, two pass deflections, and another interception, forced fumble, and fumble recovery. His 2024 performance had him graded as the 11th-best interior defender in the league, per PFF.
Having totaled double-digit sacks in each of the past two seasons, Sieler made it known that he was interested in a new deal, despite his remaining years. A day after seeing Zach Allen get a four-year, $102MM extension, the Dolphins have followed suit, perhaps realizing that Sieler may just make himself even more expensive with another double-digit sack performance.
It’s safe to say, at this point, that Newsome is probably proud, even if Sieler isn’t on his team anymore. In fact, Schefter points out that Newsome’s final rookie class — including (in draft order) tight end Hayden Hurst, quarterback Lamar Jackson, offensive tackle Orlando Brown, tight end Mark Andrews, cornerback Anthony Averett, safety DeShon Elliott, center Bradley Bozeman, Sieler, undrafted cornerback Darious Williams, and undrafted running back Gus Edwards — has now generated more money in future contracts than any draft class in NFL history.
While Newsome gets to be proud, Sieler deserves every bit of credit for where he ended up. From walking on to a Division II football team to sneaking into the last 19 picks of the NFL draft to making a name for himself with double-digit-sack seasons in Miami, Sieler continues to surpass expectations at every step of his career.
Both players will have to pass a physical for the trade to go through, according to The Athletic’s Brooks Kubena.
