De'Von Achane Injury History & Analysis

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.

The Dolphins will release RB Raheem Mostert, ESPN's Adam Schefter reports. The move will save Miami a little over $3 million against the 2025 salary cap. Mostert averaged a career-worst 3.3 yards per carry last year and ranked 34th among 51 qualifying RBs in Pro Football Focus rushing grade. He turns 33 in April. Mostert is unlikely to be a fantasy factor in 2025 or beyond. He's cuttable from dynasty rosters.

Dolphins HC Mike McDaniel said Wednesday that the team is preparing QB Tyler Huntley to start this weekend's game vs. the Jets. QB Tua Tagovailoa will be limited in practice on Wednesday with his hip injury, and it sounds like he hasn't been ruled out for Week 18 yet. But fantasy owners should be planning as if it'll be Huntley under center again for now. He played well in the Week 17 win over the Browns, completing 22 of 26 passes (85%) for 225 yards (8.7 YPA) and one TD, adding another 52 yards and a score on the ground. Just as importantly, the Dolphins stayed pass-heavy, registering a +11% pass rate over expected. That makes it easier to trust guys like WR Tyreek Hill and TE Jonnu Smith in Week 18 fantasy lineups, although Huntley is still a downgrade from Tagovailoa.

The forecast for this afternoon's Dolphins-Browns game calls for sustained winds of 15-25 mph with gusts over 35. There's a chance for rain during the second half, but the winds are the real story here. They figure to impact the passing and kicking games. With Tyler Huntley and Dorian Thompson-Robinson under center for their respective teams, this figures to be a low-scoring, run-heavy affair.

Dolphins WR Jaylen Waddle (knee) is listed as doubtful for Sunday's game vs. the 49ers. Waddle has had an underwhelming season and ranks just fourth among Dolphins in targets. But he still leaves behind 5.3 targets per game. His absence means added target upside for WR Tyreek Hill, TE Jonnu Smith, and RB De'Von Achane. Rookie Malik Washington figures to slide in as Miami's No. 2 WR but is really only in play in DFS tournaments.