The 49ers were on their way to riding Raheem Mostert to an easy victory vs. the Rams. Then the injury bug struck again.
Mostert was ruled out with an ankle injury after his first rush of the second half. This came on the heels of an impressive first half for Mostert, who the 49ers were using as their bellcow, rushing 16 times for 65 yards, and catching two passes for 11.
The ankle injury is a new one for Mostert, who missed three games earlier this season with a knee issue.
The 49ers lost another starter midway through the third quarter, after safety Jaquiski Tartt left with a groin injury.