Rookie QB Josh Allen to Start for the Buffalo Bills in Week 2 The Bills have chosen Josh Allen to start at quarterback against the <br />San Diego Chargers on Sunday. Allen will become the second rookie QB from the class of 2018 to start a game, after Sam Darnold. The decision by Bills head coach Sean McDermott comes after the Bills' 47-3 loss to the Baltimore Ravens in Week 1. Sean McDermott on starting rookie QB Josh Allen, via press pool In the blowout loss to Baltimore, Allen replaced starting quarterback <br />Nathan Peterman in the third quarter. The seventh overall pick in the 2018 Draft finished <br />6-of-15 for 74 yards.