Answering five 49ers questions: How George Kittle and Brock Purdy's injuries impact team
The San Francisco 49ers endured extensive roster and injury upheaval in 72 hours — Kittle on IR, Purdy injured, Bourne re-signed, Moody waived, McKivitz extended.
Spencer Arrighetti was placed on the 15-day injured list retroactive to August 31 for throwing elbow inflammation while Jayden Murray was added to the MLB roster and other roster moves were made.