Huddle Up: Mason's 2024 season ended early with an ankle injury, but he delivered solid results when healthy while filling in for Christian McCaffery. Aaron Jones is the top option in the Minnesota backfield, but Mason should be one of the top handcuffs. He would a weekly starter if Jones were to miss time.

Huddle Up: Minnesota surrendered fifth- and sixth-round picks in the deal for Mason, who compiled 789 yards and 3 TDs on 153 carries last season. Injuries were an issue, though. He sustained a shoulder injury in Week 6, aggravated it in Week 8, returned in a reserve capacity in Week 10 -- he carried the ball just six times over the next three games -- and then had 13 carries in Week 13 before suffering a season-ending high-ankle sprain. All told, he carried the ball 105 times in the first five games and just 48 times over the remaining dozen. He's set to slot in as the RB2 (or perhaps even 1b) behind Aaron Jones, who had a big year in 2024 but is entering his age-31 season. There's a lot to like about Mason's potential here, setting him up to be an intriguing standalone No. 4 fantasy back and one of the top handcuff options in all of fantasy football.

Huddle Up: While Jones handled a career-high 306 touches in 2024, the 30-year-old has long been used more of a 1A back than a featured back. The combination of his age and injury history was likely more than enough to make acquiring a back like Mason a priority. Jones figures to be the clear starter again this season, but the Vikings' likely dream scenario is to cap his workload around 250 touches and let Mason finish off drives. Between the expected goal-line role and the likelihood that Jones misses time in 2025, Mason should be considered a priority handcuff in fantasy.

Huddle Up: Adding Mason to the backfield likely means fewer touches for Aaron Jones going forward. Jones should remain the top option in the Minnesota backfield, but he will likely top out as a RB2 with Mason being a priority backup.

Huddle Up: With Mason out of the picture, Isaac Guerendo appears poised to become one of the more valuable backups in fantasy. Of course, that could change if San Francisco decides to add a running back in the draft.

Huddle Up: Mason was one of the best players in fantasy in the early part of last season, and he'll be and upside RB3 and an absolute handcuff to Christian McCaffrey again in 2025.

Huddle Up: Mason has proven himself a capable lead back when given the opportunity, and he averaged 5.2 yards per carry on 153 attempts last year. If Mason ends up being positioned to receive significant touches in 2025, he will be in the RB2 mix.

Huddle Up: Reports suggested this was the move the Niners would make, and finally it has been made official. With Mason and Christian McCaffrey (knee) both on injured reserve, rookie Isaac Guerendo, who has had some explosive runs this season, will take the reins in the backfield. He's an RB2 with upside the rest of the way.

Huddle Up: Mason is expected to be placed on the Reserve/Injured list and likely will miss the rest of the regular season. Isaac Guerendo will be the main running back for the 49ers for now and can be at least a flex option in fantasy leagues.