The Miami Dolphins will head into training camp at the end of July with a totally different roster than the one that ended the 2025 season after an offseason overhaul that saw the departure of several significant veterans and the arrival of newcomers young and old.The Dolphins have 91 players on their roster with the exemption they have for England-born rookie tight end Seydou Traore, a participant of the International Player Pathway Program.As life goes in the NFL, not every player on the roster is equal, so we decided to rank all of them in terms of their importance to the Dolphins' success in the 2026 season. The list was determined on the basis of not just ability but also expected role and significance to the overall progress of the organization as it continues the rebuilding project that began with the hiring of Jon-Eric Sullivan as GM and Jeff Hafley as head coach.This is part of a series that will run in the lead-up to start of training camp.NUMBER 10: DT ZACH SIELERHow he joined the DolphinsThe Dolphins claimed Sieler off waivers from the Baltimore Ravens in December 2019 and he's now the longest-tenured player on the roster after signing three contract extensions since then.Contract statusSieler is entering the final year of the three-year extension he signed in 2023, with his latest extension kicking in next year and lasting through the 2029 season. That latest extension was worth up to $64 million and included a $16 million signing bonus (per Spotrac), but contains a clear out for the Dolphins starting next offseason. None of Sieler's salary for 2027 currently is guaranteed, though $10 million will be if he's on the roster on the third day of the 2027 league year.His 2025 seasonSieler started all 17 games for the Dolphins and finished with 47 tackles, 5.5 sacks and a fumble recovery. Sieler, who had reached double digits in sacks in both 2023 and 2024, got all of his sacks in the final eight games of the season. PFF gave Sieler a season grade of 60.6, which ranked 58th among 127 interior defenders (with significant snaps) around the NFL. This was Sieler's lowest PFF grade since his rookie season with the Baltimore Ravens when he appeared in only two games.His projected roleThis is a big season for Sieler, not only in his role as leader and key player on the Dolphins defensive line but also when it comes to his NFL future.Sieler indicated in the offseason that he'd love to finish his career in Miami, but the rebuilding Dolphins are going to have to balance the financial ramifications of keeping Sieler on the roster, particularly since Sieler will turn 31 in September, he's pricey and coming off what was a disappointing season for him. Without question, Sieler wasn't helped by the fact he was surrounded on the defensive line last season by three rookie defensive tackles (Kenneth Grant, Jordan Phillips and Zeek Biggers) and no longer having the benefit of playing alongside Christian Wilkins or Calais Campbell. While he wasn't very noticeable in the early part of the season, Sieler did come on strong in the second half and looked more like the player we saw in 2023 and 2024. If the Dolphins defense is to experience any kind of success under new head coach Jeff Hafley in 2026, Sieler needs to be impactful from the start of the season. Sieler figures to be a team captain again and really the only question about his role is whether Hafley will rely on him more than Anthony Weaver did in 2025 when Sieler's defensive snap average went from 80 to 73 percent.THE PREVIOUS PLAYERS ON THE COUNTDOWN90. G James Ester89. T Kevin Cline88. QB Mark Gronowski87. DT Keith Cooper Jr.86. EDGE Seth Coleman85. RB Anthony Hankerson84. WR Donaven McCulley83. FB D.J. Herman82. C Jim Bonitas81. LS Tucker Addington80. DT Alex Huntley79. T Marques Cox78. EDGE Rodney McGraw77. TE Cole Turner76. DT Khalil Saunders75. CB Miles Battle74. S Major Burns73. RB Carlos Washington Jr.72. EDGE Robert Beal Jr.71. WR A.J. Henning70. RB Donovan Edwards69. DB Omar Brown68. EDGE Cameron Goode67. WR Jalen Reagor66. EDGE Max Llewellyn65. WR Terrace Marshall Jr.64. CB Ethan Robinson63. G/T Josh Priebe62. DT Rene Konga61. WR Tahj Washington60. QB Cam Miller59. CB A.J. Green III58. EDGE Mason Reiger57. CB Alex Austin56. P Bradley Pinion55. LB Jackson Woodard54. K Zane Gonzalez53. S Louis Moore52. DT Matthew Butler51. CB Marco Wilson50. CB Darrell Baker Jr.49. LB Ronnie Harrison Jr.48. T Charlie Heck47. WR Chris Bell46. CB Storm Duck45. WR Theo Wease Jr.44. TE Seydou Traore43. G DJ Campbell42. G/C Andrew Meyer41. K Riley Patterson40. S Michael Taaffe39. CB Ethan Bonner38. TE Ben Sims37. EDGE David Ojabo36. S Lonnie Johnson Jr.35. Zayne Anderson34. EDGE Josh Uche33. WR Jalen Tolbert32. EDGE/LB Trey Moore31. LB Willie Gay Jr.30. RB Jaylen Wright29. WR Kevin Coleman Jr.28. G Jonah Savaiinaea27. DT Zeek Biggers26. LB Kyle Louis25. RB Ollie Gordon II24. WR Tutu Atwell23. G/T Jamaree Salyer22. WR Malik Washington21. DT Jordan Phillips20. WR Caleb Douglas19. LB Jacob Rodriguez18. CB Jason Marshall Jr.17. S Dante Trader Jr.16. TE Will Kacmarek15. QB Quinn Ewers14. LB Tyrel Dodson13. T Austin Jackson12. CB JuJu Brents11. TE Greg DulcichAdd us as a preferred source on GoogleFollow