Young Cowboys looking to boost pass rush

OXNARD, Calif. (AP) — Charles Tapper churned on an exercise machine early one morning at training camp, drawing a rebuke from the staff of the Dallas Cowboys for overdoing things when the defensive end turned up sore after missing all of his first season with a back injury.
Tapper can’t help but think of himself as another rookie alongside first-round pick Taco Charlton, also a pass rusher, even though the former Oklahoma player has been in the NFL a year longer.
He didn’t play