The joy tight end Dawson Knox experienced in signing a four-year, $53.6 million contract extension with the Buffalo Bills was undercut by the recent death of his younger brother.

Josh Allen needed just six plays to lead the Bills 70 yards for an opening-drive touchdown before taking a seat in his preseason debut, and Buffalo routed the Denver Broncos’ backups 42-15.

Florida International University says football player Luke Knox has died.