Alexander Mattison.

Alexander Mattison is a running back for the Miami Dolphins, bringing veteran NFL experience to a backfield role that demands both rushing and receiving contributions. He stands 5 feet 11 inches tall and weighs 220 pounds, giving him a sturdy, between-the-tackles build well suited to a traditional workhorse role. Mattison played college football at Boise State, where he built a reputation as a durable, productive back before reaching the NFL.

Through 14 games played in the 2024 season, Mattison has logged consistent active time, though his exact workload within Miami's offensive scheme will shape his fantasy and betting value week to week. His size and experience suggest he can handle short-yardage and goal-line situations, areas where larger backs tend to see concentrated usage. For bettors, Mattison is most relevant in rushing yards props, reception-based props if he factors into the passing game out of the backfield, and anytime touchdown markets given the value heavier backs carry near the goal line. Monitoring his share of Miami's backfield carries is key, as running back usage in the NFL is often split and subject to game script. Any shifts in his role, whether due to injury to a teammate or a change in game plan, can create meaningful prop betting opportunities tied to his rushing attempts and yardage totals.