Mandatory Credit: Mike Carter-USA TODAY Sports
4. Purdue QB David Blough
Redshirt freshman Blough has started the last two games in place of Austin Appleby, highlighted by 340 passing yards and three total touchdowns (two passing and one rushing) against Bowling Green in his first start. Appleby is dealing with a thigh bruise and may not be available on Saturday, so the Boilermakers are likely to sink or swim with Blough under center.