"I'm just building myself up," Mostert said. "I'm actually gaining some more muscle, which is kind of bizarre because I already had muscle. Just trying to incorporate those things in my daily workouts so I'm able to take those hits and be one of those guys who is getting 200 carries. I have to get prepared for that. And the only way I know how is to get bulky and stronger." Music to the ears of fantasy owners, or is it? Could the added weight compromise his ability as a shifty, speedy back? In theory, it could, but the extra carries he’s expecting sounds like a win for those who draft the San Francisco running back who finally broke out in 2019 after bouncing around in the NFL for five years. If Mostert does in fact receive 200+ carries, it would almost certainly negatively affect fellow RB Tevin Coleman.