Cowboys' Lawrence had offseason back surgery

Cowboys defensive end DeMarcus Lawrence underwent a cleanup procedure on his back in the offseason and will start training camp on the PUP list, coach Mike McCarthy said Thursday.
https://www.espn.com/nfl/story/_/id/31863072/dallas-cowboys-demarcus-lawrence-had-offseason-back-surgery-start-training-camp-pup-list?utm_source=dlvr.it&utm_medium=blogger