This offseason, the Miami Dolphins brought in several new coaches, including defensive coordinator Sean Duggan, who has followed Jeff Hafley from Ohio State to Boston College to Green Bay and now to South Florida.
Duggan's been working with this defense for 11 months and eight games, so he has a pretty good grasp of where his players stand. When asked who is the most improved defender in his tenure, the 33-year-old identified a defensive lineman.
That's a good question, because there are a lot of guys," Duggan said. "Who's improved the most? I think the first guy that comes to my mind is Zeek Biggers. I think he does a great job. I think we ask him to do a lot of different things in a position that's so much about fundamentals and technique, right?
To be able to play multiple spots up front, I think, is really impressive and a huge credit to him and a huge credit to all the D-line coaches, Austin, Siriki and Chuka. I think all of them do a great job.
"I think he's a guy that works his tail off every single day, embraces his role and his role is whatever the team needs him to do, which I just have so much respect for him embracing that. He knows it's bigger than him, bigger than just the D-line; he does whatever he can for the defense."
Biggers, 23, joined the Dolphins as a seventh-round pick in the 2025 NFL Draft following a four-year collegiate career at Georgia Tech. As a rookie, he played 37% of the team's defensive snaps in nine games and recorded 20 tackles, four quarterback hits and 1.5 sacks.
This year, Biggers has played 59% of the team's defensive snaps. In eight games, he already has 17 tackles, three quarterback hits, one sack and one pass defensed. With Zach Sieler suffering a season-ending injury in Week 9, Biggers is someone who will have an opportunity to step up and show he's deserving of more chances going forward.
This article originally appeared on Dolphins Wire: Sean Duggan identifies Dolphins defender who's grown the most in 2026
