By STEVE REED
AP Sports Writer
CHARLOTTE, N.C. (AP) — Panthers backup quarterback Sam Darnold and kicker Zane Gonzalez were both carted off the field in the third quarter of Carolina’s preseason game Friday night against the Buffalo Bills. Darnold suffered a sprained left ankle after Bills defensive tackle C.J. Brewer landed on him as the quarterback was releasing the ball. This is the second straight week the Panthers have lost a quarterback to an injury in a preseason game. Last week rookie Matt Corral, the team’s third-round draft pick, suffered a season-ending injury when he tore a ligament in his foot in a 20-10 loss to the New England Patriots.