Who Should I Start? Alexander Mattison or Isaiah Spiller

Thursday, March 13, 9:35 PM

Former Las Vegas Raiders running back Alexander Mattison is signing an undisclosed deal on Thursday with the Miami Dolphins, sources told FOX Sports' Jordan Schultz. Earlier in the day, former Dolphins RB Raheem Mostert signed with the Raiders in free agency. The 26-year-old Mattison joined the Raiders in 2024 after spending his first five years in the NFL with the Minnesota Vikings. He eventually took over the lead-back role from a disappointing Zamir White and carried the ball 132 times for 420 yards and four touchdowns (a career-low 3.2 yards per tote) in 14 games (seven starts), adding a career-high 36 catches for 294 yards and another score. Mattison's move to Miami is a big downgrade, as he'll merely be competing for a change-of-pace role with Jaylen Wright behind unquestioned starter De'Von Achane. He'll be avoidable in most fantasy drafts this fall.

Friday, April 25, 5:42 PM

The Las Vegas Raiders waived running back Isaiah Spiller, wide receiver Ramel Keyton, cornerback M.J. Devonshire, defensive tackle Tyler Manoa and linebackers Kana'i Mauga and Jackson Mitchell before the start of Round 2 of the 2025 NFL draft on Friday. Spiller, the former fourth-rounder by the Los Angeles Chargers in 2022 out of Texas A&M, is by far the biggest name on this list of cuts for the Raiders. The 23-year-old didn't see the field at all in 2024 and will now hit the open market after the Raiders pulled the trigger and took Boise State running back Ashton Jeanty at No. 6 overall in the first round on Thursday evening. In his two seasons with the Chargers in 2022 and 2023, Spiller had only 55 rushing attempts for 137 yards (2.5 yards per carry) and no touchdowns. He added nine receptions for 47 yards through the air. Spiller will now look to latch on with another team as RB depth.