Williams (hamstring) has been ruled out for Sunday's game against the Jets, Brad Biggs of the Chicago Tribune reports.
With Williams set to miss a second straight contest due to his hamstring issue, Chicago will once again turn to either Case Keenum or Tyson Bagent under center against New York. Keenum played well in Monday night's win over the Eagles, but Bagent has a real chance to get the start for Week 4.