These teams know each other well. Lions knocked out the Rams last year in the playoffs. Both teams have high expectations. This is a good spot for the under, Vegas is well aware the public loves to bet the over so they adjust the line accordingly to start with. That gives us value right there. Week 1 Unders are cashing a 55% pace since 2013. Wait until close to game time to bet this under as the public will be betting this number up Sunday Night!