Of the eight undefeated teams in the National Football League, the Buffalo Bills are one of them.
Despite the improvement of Josh Allen, the defense has been the real story. Since it signed Levi Wallace as an undrafted free agent in 2018, the Bills have formed a legitimate secondary. The former University of Alabama cornerback led the team in total tackles (10) with one pass breakup in its 31-28 win over the Miami Dolphins on last week. In his second year as a starter, Wallace faced the high-powered Los Angeles Rams and head coach Sean McVay on Sunday.