Brock Purdy subs in for injured Jimmy G to lead 49ers over Dolphins

Rookie quarterback Brock Purdy rode to the rescue in his first extended NFL action, passing for 210 yards and two touchdowns to push the San Francisco 49ers' winning streak to five games with a 33-17 victory Sunday over the visiting Miami Dolphins at Santa Clara, Calif.

Purdy, who was 25 of 37 with an interception, took over in the first quarter for an injured Jimmy Garoppolo and delivered a touchdown on his first drive.