While it's yet to be determined who will be the official starting quarterback for the San Francisco 49ers in the upcoming 2023 NFL season, they've made a move to add some important depth at the position while the future of Jimmy Garappolo is sorted out. 

According to multiple reports, the 49ers have signed quarterback Sam Darnold to a one year contract: 

He'll add valuable insurance behind that of Trey Lance and Brock Purdy as they work to rehabilitate their injuries.