It wasn't an easy decision, though. Much discussion, and even a few tears, went into it (more on that here).
Mostert, however, feels it was best for his family. He is, after all, its provider. And now, he can make more money in the process.
There had been reports that the running back wanted more money following a breakout year during which he became a featured component of the 49ers' No. 2 ranked rushing attack. Mostert is no longer primarily a special-teams contributor. He is a featured back.
Mostert wasn't, however, the highest-paid running back on the roster. It wasn't even close. So, negotiations ensued and, eventually, came a trade request. The two sides worked things out, though, and there is no bad blood between the player and the team.
"It was long, and (there were) difficulties," Mostert explained. "But in the end, we were able to sit down and have communication, and it's a blessing to be here. It's one of those things where I knew it was going to be right regardless of how it played out. I knew that, in the end, it was going to be alright, and I was still going to be a Niner no matter what."
Mostert likened the difference of opinions to an argument with his brother.
"This is a family, and we all understand that," he continued. "As you can see, what we've been through these past three, four years with the organization, going 6-10, then the following year, 4-12, and then the Super Bowl run last year, it just tells you that this is a family-based organization.
"We all really pride ourselves on being family. What family doesn't have those problems? I argue with my little brother. It's one of those things where I argue with him, but I also love him at the same time. That's what's going on here.
"We eventually got it fixed, and like I said, it's a blessing, and I'm glad to be here."
More San Francisco 49ers News
-
Where 49ers OT Colton McKivitz landed in PFF's top 101 players of 2025
What a difference a season made for San Francisco 49ers right tackle Colton McKivitz. The veteran offensive lineman made his debut on Pro Football Focus' (PFF) list of the top 101 players of the 2025 NFL season, checking in at No. 63 — notably ahead of quarterback Brock... -
Will the 49ers draft a WR in Round 1? Two mocks address the same need
The San Francisco 49ers could take several paths with their first-round pick in the 2026 NFL Draft. Help in the trenches—both on the offensive and defensive lines—remains a priority. The secondary could also use reinforcements. There's even a scenario in which the 49ers add... -
Barnwell proposes Mac Jones trade the 49ers might not be able to refuse
The San Francisco 49ers have consistently maintained that Mac Jones remains part of their plans for the 2026 NFL season. The veteran quarterback signed a two-year deal last offseason, keeping him under contract through 2026 and out of free agency until 2027. That means any... -
Where 49ers QB Brock Purdy landed in PFF's top 101 players of 2025
San Francisco 49ers quarterback Brock Purdy appeared in just nine games during the 2025 NFL season, missing eight contests due to a turf toe injury suffered in Week 1. Still, the former final pick of the 2022 NFL Draft did more than enough to earn recognition from Pro Football...