‘“I don’t like to make excuses, but I mean, leading up to that day I was in the low 4.3s the whole time,” Stevenson said Friday after the Bills held their first practice of rookie minicamp. “I would say the weather kind of affected it, but I ran a 4.4 so I so have to live with it. I know my football skills and I know how fast I am on the field, for sure.”’