The San Francisco 49ers still have plenty of depth in the backfield, though that depth took a bit of a hit when they traded Matt Breida to the Miami Dolphins.

Raheem Mostert established himself as the 49ers' breakout star and–for the most part–feature back, and he is already bracing to take on a heavier workload.

Mostert said he has been gaining more muscle so he can take more hits and look to embrace contact in 2020 (via Jacob Hutchinson of KNBR):

“Right now, I’m just building myself up,” Mostert said. “I’m actually gaining some more muscle, which is kind of bizarre just because I haven’t really been able to think about gaining muscle because I’ve already had muscle like that. But just trying to incorporate those things into my daily workouts so that way I’m able to take those hits and be one of those guys that are getting 200 carries. I gotta get prepared for that, and the only way I know how is to get bulky and stronger.”

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Mostert appeared in all 16 games last year, averaging 5.6 yards per carry and also racking up 12.9 yards per reception.

This success continued into the postseason, where Mostert erupted for 220 yards and four touchdowns against the Green Bay Packers in the NFC Championship. The 28-year-old should have every opportunity to see the lion's share of offensive snaps this season.

While Tevin Coleman remains an integral part of Kyle Shanahan's outside zone runs and Jerick McKinnon might be back in the fray, Mostert is perhaps the most multi-dimensional of the Niners running backs. He also might be the most explosive, and the added muscle mass could make Mostert more dangerous after contact.