Technically speaking, the NFL's slate of Week 15 games started with an upset.
Granted, the "upset" was the Los Angeles Chargers shaking those fans out of the loop into the know—they have been one of the NFL's best teams all year and showed it by taking down the Kansas City Chiefs on the road.
While each game the rest of the way won't offer such a predictable underdog or come down to a two-point conversion at the end, many should serve up plenty of entertainment while doubling as a good chance to make headway in the late-season bankroll department.