Chicago Bears (11-4) at San Francisco 49ers (11-4). From Levi's Stadium. QB Brock Purdy and the Niners continue their late-season quest for the top NFC playoff seed, having won five straight by double-digits. Chicago has won six games when trailing in the final two minutes and have a league-best plus-21 turnover margin. D'Andre Swift and Christian McCaffrey are versatile threats at running back.