Giants Shock Houston, Send DarkHorse's Under Pick to the Glue Factory

The Giants walked into NRG Stadium and dropped 27 on a Texans defense that was supposed to clamp down at home, spoiling what looked like a textbook under setup. Final score: Giants 27, Texans 21. Combined 48 points. DarkHorse's under 42.5? Missed by a country mile. Here's the problem with that sharp-money narrative:…