The NFL is seeing trends of younger quarterbacks and high passer ratings early in the 2019 season. Close games and comeback wins have been common so far. Several teams that missed the playoffs in 2018 like the Bills, Lions, Packers and 49ers are undefeated through three weeks. Rookies are making significant impacts, like Brian Burns and Christian Miller of the Panthers each having 2 sacks so far. The Patriots and Rams are both 3-0 to start 2019 after meeting in Super Bowl LIII last season. Week 4 features two matchups of undefeated teams, with the Patriots vs Bills and Chiefs vs Lions.