Robert Quinn‘s initial Cowboys preseason slate will be nullified because of an injury he suffered at practice Tuesday. The trade acquisition will undergo surgery in Dallas after breaking his left hand, Todd Archer of ESPN.com notes (on Twitter). Quinn’s fracture, however, may not shelve him for any regular-season time. Cowboys executive VP Stephen Jones expects the ninth-year defensive end to be ready by the time the Cowboys face the Giants in Week 1. So, the Cowboys’ August lineup graphics will not feature either of the team’s projected D-end starters, with DeMarcus Lawrence also out for the preseason slate.

Moving first (perhaps predictably) to the Cowboys’ glut of extension candidates, here is the latest from around the NFC:

• Jones said earlier today the Cowboys are offering deals that would, at the moment, make Dak Prescott, Ezekiel Elliott and Amari Cooper among the five highest-paid players at their respective positions. That represents a low bar for Elliott, but Jones revealed one Cowboys stance: that Le’Veon Bell‘s Jets deal slightly lowered the running back market compared to where it was when Todd Gurley signed his lucrative pact. As for the status of Dallas’ deals, Jones does not expect them to be done during the team’s training camp stay in Oxnard, Calif. “To set all expectations, I’d be floored if anything got done before we got (back) to Dallas, with any of the three,” Jones said, via Jon Machota of The Athletic (on Twitter). “I’m not concerned. I don’t feel any momentum. I don’t see anything happening.” The Cowboys will be in Oxnard until August 15.
• Solomon Thomas has not lived up to his lofty draft status thus far, but the 49ers will try and capitalize on the former No. 2 overall pick’s interior-rushing talent. With Dee Ford and Nick Bosa now on the edge, Thomas has been rotating with defensive tackles DeForest Buckner at Arik Armstead, Jennifer Lee Chan of NBC Sports Bay Area notes. Thomas saw the majority of his 644 49ers snaps last season on the edge. The Stanford product has just four sacks in two seasons.
• Going into their preseason slate, the Vikings have leaned toward Sean Mannion being Kirk Cousins‘ primary backup. That is not surprising, given Mannion’s status as the Rams’ QB2 recently. Mannion and 2017 UDFA Kyle Sloter were rotating No. 2 reps recently, but Chris Tomasson of the St. Paul Pioneer Press points out Sloter is now rotating with rookie UDFA Jake Browning with Minnesota’s third-team offense. Both backups are playing for league-minimum money.
• Rams rookie linebacker Justin Lawler underwent foot surgery Tuesday, Lindsey Thiry of ESPN.com tweets. The Rams drafted Lawler in the seventh round out of SMU. He profiles as a full-season IR candidate. Teams must carry players through to the 53-man roster for them to be eligible for IR-return status during the season.