Who Should I Start? Jordan Mason or James Cook

Friday, December 12, 4:26 PM

Minnesota Vikings running back Jordan Mason is coming off a solid performance last week, but remains a risky, mid-tier option when his team travels to Dallas in Week 15. The first-year Viking has been solid when called upon, but has only finished better than 20th among PPR running backs one time this season. The Vikings have favored the run more than usual as they attempt to acclimate second-year quarterback J.J. McCarthy, though Mason has drawn double-digit touches only once in the past five weeks as Minnesota has continued to favor Aaron Jones Sr. The Cowboys rank a lowly 28th against PPR running backs, but Mason has just 13 catches on the season and has become a touchdown-dependent fantasy play. Ranked as RotoBaller's No. 41 running back for Week 15, Mason is likely best saved for deeper formats.

Sunday, December 14, 9:42 PM

Buffalo Bills running back James Cook put up a dominant performance in his team's critical Week 15 win over its division rival, the New England Patriots, on Sunday. Cook recorded 22 carries for 107 yards and two touchdowns, and two receptions for four yards and a score. The 26-year-old has now racked up 1,686 yards from scrimmage and 12 touchdowns on 302 touches across 14 games this season. Cook has topped 100 scrimmage yards in five straight games and 11 out of 14 total contests in 2025. He also continues to dominate backfield touches in Buffalo, logging 22 of the team's 26 rushing attempts by running backs in Week 15. Cook profiles as a must-start fantasy running back heading into a Week 16 matchup against the Cleveland Browns.