Bears QB Caleb Williams reportedly has Grade 2 hamstring injury and could be sidelined for a month

Williams injured his hamstring near the end of the Bears' loss to the Minnesota Vikings in Week 2.

The estimated timeline for a Grade 2 hamstring injury is three-to-four weeks, though Williams is determined to be back sooner, ESPN reported.

The Bears have called Williams only "week-to-week." He is out for their Week 3 game against the Philadelphia Eagles . Backup QB Tyson Bagent is in concussion protocol and has not yet been cleared to play. Case Keenum could start against the Eagles in their place.