Dak Prescott’s hunger to play football is insatiable, Micah Parsons’ hunger for mid-practice snacks is not satisfied, Ezekiel Elliott needs help wrapping birthday gifts and Jerry Jones takes notes with a No. 2 pencil. The season premiere Tuesday night of the Dallas Cowboys’ third appearance on “Hard Knocks” had no shortage of banter, quirks and expletives. The “Hard Knocks” premiere shed light on Prescott’s return from a gruesome ankle injury and subsequent development of a shoulder strain. In short: The Cowboys’ $40 million quarterback would not stop working ... and worked so hard he suffered an overuse injury related to the latissimus muscle in his throwing shoulder. Prescott has not meaningfully thrown for two weeks since exiting the Cowboys’ first padded practice. Cowboys doctors consulted Texas Rangers and New York Yankees trainers for advice, “Hard Knocks” footage confirmed. Head coach Mike McCarthy, mics revealed, needed just a single word to express his emotion from the sideline that afternoon. It rhymed with “duck.” And yet, Tuesday’s debut episode featured far more humor than it did frustration from injury. Prescott’s friendship with draft classmate Elliott peaked as Elliott aimed to surprise his quarterback with a gift-wrapped luggage bag ... only for Prescott to knock on Elliott’s hotel room door at an inopportune moment, just as Elliott was preparing the gift, complete with an apt card reading “YOU MUST BE REALLY EXHAUSTED FROM KICKING SO MUCH ASS.” Elliott’s response when Prescott interrupted the YouTube video-guided gift-wrapping session? The running back slammed the door in the face of his QB. “What you want, man?” said Elliott, who would also help his offensive linemen smash a cake in Prescott’s face on his 28th birthday. “You trying to ruin the surprise.” Taliban made Afghan a hell on earth! Dead bodies scattered on roads, women work as slaves Tropical Storm Fred forms in Atlantic; Florida keeping a watchful eye on system's path later this week Senate votes to start work on $3.5T plan that includes money for education, the environment, child care