‘The Bills gave up 183 rushing yards to New England in their season opener last week, and they are expected to be without star linebacker Takeo Spikes, who has a sore hamstring. That makes an already light Bills defensive front even smaller. Spikes’ replacement is rookie sixth-round draft pick Keith Ellison. He’s 228 pounds, 5 pounds lighter than Brown. The Bills say size isn’t the problem. They say they just need to be more disciplined in playing their defense.’