The 49ers look like they’ll be without running back, and special teams standout, Raheem Mostert for the rest of the season after he fractured his right arm in the 34-3 victory over the Oakland Raiders on Thursday night at Levi’s Stadium.
“(The training staff) didn’t tell me, but I would assume so with a broken arm,” coach Kyle Shanahan said afterward.
Mostert paced San Francisco with 86 yards on just seven carries against the Raiders, including a career-best 53-yard weave for a touchdown in the third quarter. It was his first NFL score. He left the game the following possession with the gruesome looking injury and immediately had his arm put in an air cast.