Player Bio
| HT/WT: 6-6, 300 lbs |
| Birthplace: Howell, MI |
| Age: 31 |
| School: Ferris St. |
| Experience: 9 |
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0:20Dolphins DT Zach Sieler Out for Season with Torn Biceps
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0:39Dolphins' Chris Johnson Intercepts Jared Goff
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6:26Dolphins Enter Rebuild Mode Under New Coach Jeff Hafley
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2:10NFL Week 10 Picks: Dolphins at Colts
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1:18Bills Maintain Top Seed in AFC Playoff Picture
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0:56NFL Trade Projection: Brian Thomas Jr. to Dolphins
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1:08Why the Packers Could Miss the NFC Playoffs
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1:20Broncos Extend Winning Streak to 5, But Are They Playing Their Best Football Yet?
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0:33Dolphins Execute Fake Punt Pass Against Lions
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0:33Jahmyr Gibbs Scores 4th Down Touchdown vs. Dolphins
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0:31Dolphins' Kevin Coleman Breaks Free on Reverse
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0:16Fox-y move from the Lions: Detroit punter throws dart to make fake pay off against Dolphins
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1:09Ashton Jeanty Seeing Decline in Production
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1:16Jahmyr Gibbs Off to Historic Start, Favorite to Win OPOY
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0:52NFL Trade Deadline: Could Roquan Smith Be on the Move?
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0:47NFL Trade Deadline: Could Riq Woolen Be on the Move?
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1:30NFL Trade Deadline: Biggest Names Who Could Be on the Move
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1:08Drake Maye Dealing For Patriots
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2026 Defensive
| STATS |
CMB
Total Tackles
|
SCK
Sacks
|
FUM
Forced Fumbles
|
INT
Interceptions
|
TD
Interceptions Returned For Touchdown
|
|---|---|---|---|---|---|
| Regular Season | 24 | 2.0 | 0 | 0 | 0 |
Top Zach Sieler News
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Dolphins' Zach Sieler: Officially placed on IR
The Dolphins placed Sieler (biceps) on injured reserve Tuesday.
This move was anticipated after Sieler suffered a ruptured biceps in Sunday's Week 9 loss to the Lions. The veteran defensive tackle is scheduled for surgery and will finish his ninth NFL campaign with 24 tackles, including 2.0 sacks. Zeek Biggers, Kenneth Grant and Jordan Phillips could all take on more defensive snaps with Sieler sidelined for the rest of the season.
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Dolphins' Zach Sieler: Requires season-ending biceps surgery
Sieler ruptured his biceps during Sunday's 19-9 loss to the Lions and will require season-ending surgery, Adam Schefter of ESPN reports.
Sieler reportedly sustained the injury on the Dolphins' first defensive play of the game and proceeded to play with the ruptured biceps throughout the contest. The standout defensive lineman will likely undergo surgery in the coming days and will face a projected 5-to-6-month recovery timeline, which could limit his availability for OTAs in the spring. The 31-year-old Sieler finishes the 2026 campaign with 24 tackles (14 solo) and 2.0 sacks over his eight appearances with Miami.
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Dolphins' Zach Sieler: Dodges injury report Wednesday
Sieler (undisclosed) is not listed on Wednesday's injury report, David Furones of the South Florida Sun Sentinel reports.
Sieler has been expected to suit up for the Week 1 meeting with the Raiders, though his omission from Wednesday's injury report seemingly confirms he will be out there for the opener. The 2018 No. 238 overall pick is coming off a down season, accumulating 47 total tackles and 5.5 sacks in 17 regular-season appearances in 2025.
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Dolphins' Zach Sieler: Likely back for Week 1
Sieler (undisclosed) is expected to be ready for the regular-season opener against the Raiders, David Furones of the South Florida Sun Sentinel reports.
The Dolphins are banged up on the defensive line with both Sieler and Kenneth Grant (undisclosed) considered week-to-week. Coach Jeff Hafley gave an update on Sieler on Tuesday, expressing some optimism that the veteran's status was not in doubt for Week 1 at this time. Sieler has been sidelined since Aug.12 with an unspecified issue.
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Dolphins' Zach Sieler: Deemed week-to-week
Dolphins head coach Jeff Hafley said Wednesday that Sieler is being viewed as week-to-week due to an unspecified injury, Marcel Louis-Jacques of ESPN.com reports.
Sieler will sit out the Dolphins' joint practice and preseason opener versus the Commanders this week while he recovers from the injury, but Hafley didn't indicate that the standout defensive tackle is at serious risk of missing the Week 1 matchup with the Raiders on Sept. 13. After two straight 10-sack seasons, Sieler saw his production dip in 2025, as he recorded 5.5 sacks to go along with 47 tackles while playing the full 17-game slate.
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Dolphins' Zach Sieler: Production dips in 2025
Sieler made 47 tackles (29 solo), including 5.5 sacks, across 17 regular-season games in 2025. He also had one pass defensed and one fumble recovery.
Sieler played two more games in 2025 than he did in 2024, but he nonetheless finished with just more than half the 10.0 sack total he had managed in each of Miami's prior seasons. The 30-year-old defensive tackle is under contract with the Dolphins through 2029, but the team will have a potential "out" in his contract after the 2026 campaign, making it potentially crucial for Sieler to bounce back to his usual production level next season.
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Dolphins' Zach Sieler: Explodes for 2.5 sacks Sunday
Sieler registered four tackles (three solo), including 2.5 sacks, in Sunday's 34-10 Week 14 win over the Jets.
Coming into Sunday, Sieler had just 1.0 sacks through 12 games. He didn't record any defensive stats in the first half against New York but then detonated for 2.5 sacks across the final two quarters. Sieler probably isn't going to reach double-digit sacks for a third straight season -- he's at just 3.5 through 13 games -- but for one game at least, he was a forceful part of the Dolphins' pass rush.
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Dolphins' Zach Sieler: Logs three tackles
Sieler tallied three tackles (three solo) during Miami's loss to the Colts on Sunday.
Sieler ended up having a solid performance in what was overall a poor showing for the team. The 30-year-old has racked up 10.0 sacks in each of the last two campaigns and will look to record his first of the season during Miami's Week 2 matchup versus the Patriots.
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