Eagles training camp preview: Is Derek Barnett ready to step up? Who will start at cornerback? Plus, Darren Sproles returns (Ep. 237)

Summary: Eagles training camp begins this week, so Zack Rosenblatt and Mike Kaye are here to preview the team's defense. Who will start in a loaded cornerback group? Will Derek Barnett and/or Josh Sweat emerge at defensive end? How concerning is Fletcher Cox's injury? Plus, analysis on Darren Sproles' return.