Open Nav
Show Navigation
Show Menu
FANTASY FOOTBALL NEWS

Dolphins Add Alexander Mattison For Backfield Depth

By Jared Smola | Updated on Fri, Mar 14 2025 3:35 PM UTC
Alexander Mattison Headshot

The Dolphins signed RB Alexander Mattison to a one-year deal. He swaps places with RB Raheem Mostert, who signed with the Raiders earlier this week. Mattison led Las Vegas with 132 carries, 420 yards, and four TDs last year.

2025 Fantasy Football Impact

Mattison was part of one of the worst rushing attacks in the league last year. His 3.2 yards per carry ranked dead last among 49 RBs with 90+ carries. Mattison also ranked near the bottom of that group in these key efficiency metrics:

  • 48th in yards after contact per attempt
  • 46th in rush yards over expected per attempt
  • 48th in Pro Football Focus rushing grade

Mattison will ideally slot in as Miami's No. 3 RB behind De'Von Achane and Jaylen Wright, although he could wind up as the No. 2 if Wright doesn't progress as hoped in his second season.

We'll see exactly what kind of role Mattison carves out this summer. But we don't expect him to be a 2025 fantasy factor -- or have an impact on Achane's value.

Jared Smola Author Image
Jared Smola, Lead Analyst
Jared has been with Draft Sharks since 2007. He’s now Lead Analyst, heading up the preseason and weekly projections that fuel your Draft War Room and My Team tools. He currently ranks 1st among 133 analysts in draft rankings accuracy.
Video: What We Got Right in 2024

Video: What We Got Right in 2024

4:41pm UTC 3/14/25

Jayden Daniels turned into one of the best fantasy football picks of 2024. See what else went right for us -- and how that should shape your 2025 drafting.

Read More »
Video: Free Agent Moves That Matter

Video: Free Agent Moves That Matter

12:30pm UTC 3/12/25

Is Najee Harris about to light it up? Should you still avoid Javonte Williams? We're sorting through the early free agent moves in search of fantasy football value ...

Read More »
Shedeur Sanders Dynasty Value: Film Reveals Limited Fantasy Upside

Shedeur Sanders Dynasty Value: Film Reveals Limited Fantasy Upside

11:55am UTC 3/12/25

Draftniks call this guy a top QB prospect. But we broke down the film and found some serious flaws that could hurt him in fantasy.

Read More »
Get Instant Access to the Draft War Room & Much MoreWhy Wouldn't You Invest $34 To Win Your League?
Select Billing Option:
Semi-annually
Monthly
Save 60% by paying semi-annually!
Redraft Leagues, Unlimited
$6$16
Per month , billed semi-annually Question

IncludedUnlimited Live-Draft SyncQuestionQuestion
IncludedDraft War RoomQuestionQuestion
IncludedMock Draft TrainerQuestionQuestion
IncludedFree Agent FinderQuestionQuestion
IncludedSit-Start Team GuideQuestionQuestion
IncludedTrade NavigatorQuestionQuestion
Add Personalized Advice
$16$44
Per month , billed semi-annually Question

Get personalized advice all season:
  • Draft questions
  • Lineup decisions
  • Trade and Waiver Wire advice
  • Really, any fantasy football advice you need
Via email... straight from our fantasy analysts to you!
Compare Plans »
THE 2025 ROOKIE GUIDE IS HERE! UPDATED POST-DRAFT
Trade Values • Model Scores • Analytics & More