MIAMI, Florida — The Miami Dolphins have made one of their more intriguing late-summer additions, bringing in former Dallas Cowboys defensive lineman Mazi Smith just days before the beginning of the 2026 NFL regular season.
Smith, once viewed as a powerful $25 million-caliber defensive cornerstone because of his draft pedigree and physical upside, has officially joined Miami’s practice squad after his career path took a sharp and unexpected turn.
For the Dolphins, the move represents a low-risk opportunity to “rescue” a former first-round pick whose NFL rise was slowed by inconsistency, injuries and changing roster plans.
Smith entered the NFL with major expectations after the Dallas Cowboys selected him in the first round of the 2023 NFL Draft out of Michigan.
The former Wolverines standout was viewed as a rare interior defender with the strength, size and athletic profile to become a long-term force against the run.
Dallas believed it had found a player capable of anchoring the middle of its defensive front for years.
But Smith’s early NFL journey never fully developed the way the Cowboys originally hoped.
Instead of quickly becoming a dominant interior presence, he found himself battling through an uneven adjustment period at the professional level.
Injuries and inconsistent momentum made it difficult for him to establish the type of rhythm expected from a first-round defensive tackle.
Over time, his role became less secure.
The Cowboys eventually moved in another direction, and Smith’s name became attached to one of the more surprising early career downturns from the 2023 draft class.
For a player who had once carried first-round expectations, the shift was difficult to ignore.
Smith was no longer being discussed as a guaranteed building block.
Instead, he became a reclamation project searching for the right environment to restart his development.
That search led to Miami.
The Dolphins officially added Smith to their practice squad as part of a series of roster moves designed to strengthen depth before the new season. Miami’s official transaction page listed Smith among the players signed to the practice squad on September 1.
The move also came as Miami continued reshaping its defensive front, adding several players after final roster cuts and looking for affordable upside wherever possible.
For Smith, the practice squad may provide exactly the kind of reset his career needs.
He is no longer being asked to immediately justify first-round expectations or carry the pressure that followed him after draft night.
Instead, he can focus on learning the Dolphins’ system, improving his technique and proving he still belongs in an NFL rotation.
Miami gains a former top prospect without needing to immediately commit a spot on the active roster.
That makes the signing especially interesting for a team searching for defensive line depth during a long and unpredictable season.
Smith’s physical tools remain difficult to dismiss.
At his best, he has the lower-body power, frame and run-stopping profile teams value in the middle of the defensive line.
The question is whether Miami can unlock that version of him more consistently.
The Dolphins are not treating this as a guaranteed turnaround.
They are taking a calculated swing on a player who once looked like one of the safest defensive interior prospects in his draft class.
For Smith, this opportunity is about more than simply staying in the league.
It is about changing the direction of a career that began with first-round promise but quickly became complicated by setbacks.
Being placed on a practice squad can feel like a fall for any former first-round pick.
But it can also become the quiet beginning of a comeback.
The Dolphins have now given Smith a place to rebuild, recover and wait for another chance to be elevated.
If injuries hit Miami’s defensive front or if Smith begins to stand out in practice, his path back to an active NFL roster could arrive sooner than expected.
For Dallas, his departure remains a reminder of how quickly first-round investments can lose momentum when development does not match expectations.
For Miami, it is a chance to turn another team’s disappointment into hidden value.
And for Mazi Smith, this could become the new life his NFL career needed after injuries and stalled progress derailed his rise.
The former Cowboys first-round pick may not be starting the season as a centerpiece, but his story is not finished.
In Miami, the $25 million-caliber defensive lineman now has another opportunity to prove that his best football may still be ahead.
