Five nuggets of knowledge about the San Francisco 49ers in Super Bowl XLVII:Vernon Davis can be an unstoppable postseason force: The seventh-year tight end has averaged 27.6 yards per reception in four playoff games over the past two seasons. He has 16 catches for 442 yards and five touchdowns in those games. That includes a five-catch, 106-yard performance against Atlanta in the NFC Championship Game. Since Davis entered the NFL in 2006, no other tight end with even half as many postseason receptions has averaged better than 17.