There's a new quarterback throwing for the Riders, and he's a defensive back

SASKATOON — The Saskatchewan Roughriders have giveth and taketh one away at the quarterback position.
Sort of.
After the Riders released international pivot Marquise Williams on Monday, former Auburn Tigers quarterback Nick Marshall — who is trying out for the Roughriders at cornerback in the defensive secondary — took reps at the QB spot during Tuesday’s training camp session at the University of Saskatchewan.
Rather than donning the black jersey that quarterba