The Dolphins are adding a running back.
Undrafted rookie Coleman Bennett has agreed to a one-year deal with the club, ESPN’s Adam Schefter reports.
He previously spent time with the Bears for the offseason and training camp. He was waived last week.
Bennett started his collegiate career at Bucknell before transferring to Rice in 2024 and Kennesaw State in 2025.
The Dolphins added a wide receiver to the roster on Tuesday.
They announced that they have claimed Ryan Miller off of waivers. The Giants waived Miller on Monday.
Miller’s time with the Giants ended without him appearing in any regular season games. He was claimed off of waivers from the Bucs last December and re-signed with the team in April.
Miller had 14 receptions for 162 yards and three touchdowns in 25 games with the Bucs over three seasons.
The Dolphins created room for Miller in Miami by waiving wide receiver Tahj Washington. The 2024 Dolphins seventh-round pick had three catches for 37 yards last season.
The Dolphins will be missing one of their rookies for an extended stretch.
Via multiple reporters, head coach Jeff Hafley said linebacker Trey Moore will undergo ankle surgery. While Moore is expected back at some point in the season, Hafley said it will take a while for him to return.
Miami selected Moore in the fourth round of this year’s draft. The linebacker began his collegiate career at UTSA before playing at Texas over the last two seasons.
Additionally, Hafley noted that defensive lineman Kenneth Grant is week to week and defensive lineman Zach Sieler is getting close to returning to the field.
The Dolphins announced a handful of roster moves on Monday afternoon.
They have signed tight end Ethan Conner and linebacker Jaheim Thomas. They waived center Jim Bonifas and cornerback Ahmari Harvey to make room for the new additions.
Conner was undrafted out of Troy this year. He signed with the Jaguars in the spring and spent part of training camp with the team before being let go.
Thomas had 64 tackles, a half-sack, a tackle for loss and two passes defensed in 10 games for Louisville of the UFL this year. He was undrafted in 2025 after finishing his college time at Wisconsin.
The preseason is often about figuring out the contours of the roster. Sometimes, it’s simply about getting through the game.
On Saturday, the Dolphins extensively used a player who’d signed with the team a day before — and who hadn’t participated in any portion of any training camp, with any team.
And Stephen Dix Jr. was thrilled to have the opportunity, not just to play but to play a significant role.
“We had a linebacker who I met this morning in my office; Steve came in, met him, and he started the whole second half where we had to tell him the call, he had to give the call, then we had to tell him what to do on every single play,” coach Jeff Hafley told reporters after the game. “So we were able to play only like two calls in the second half, which has never happened to me in my life. So I just give him credit for going out and fighting. That’s what the preseason is all about, to find out who those guys are.”
Dix welcomed the challenge, and the opportunity.
“I think I had a quick 30-minute meeting with [linebackers] coach [Al] Washington,” Dix told reporters. “They told me, ‘Look bro, just go out there run sideline to sideline. I’m going to be in your ear and I’m going to tell you the call and tell you what to do.’ . . . Like that’s literally any football player’s dream, get told what to do and just go play ball. It was exciting. It was so fun out there.”
Dix, undrafted out of Arkansas, had been signed by the Cardinals but released in June.
“This is my dream, I’m doing exactly what I set out to do as a kid, and the journey doesn’t stop here,” Dix said. “It’s obviously putting together enough days to make the team and continue my career. Today was just surreal. It was a blessing. I can’t be more thankful. . . . To get this tryout and to get called to come up here and sign and not only sign and play, what more can I ask for? That’s all I wanted, was an opportunity to put the pads on.”
Dix was on the field for 34 defensive snaps and two special-teams plays. He made one tackle and had two assists.
Regardless of whether he wins a spot on the 53-man roster, he may have done enough to get a spot on the practice squad, where he can keep working toward his next opportunity.
