Jackson, Ravens beat 49ers 20-17 to extend win streak

Baltimore Ravens kicker Justin Tucker (9) is carried off field by his teammates after making a game winning field goal against the San Francisco 49ers in an NFL football game, Sunday, Dec. 1, 2019, in Baltimore, Md. Ravens won 20-17. (AP Photo/Julio Cortez)

BALTIMORE — Neither rain, wind nor the San Francisco 49ers’ top-ranked defense could prevent Lamar Jackson from guiding the Baltimore Ravens to their franchise-record eighth straight win.