as perhaps one of Arizona Cardinals Hats the most underpaid players in the NFL.His boss is still trying to fix that.Cardinals General Manager Steve Keim said during an appearance on Arizona Sports 98.7 this morning that he’s still working on a number of fronts to try to improve his roster.Asked specifically about Johnson, he said there’s a “constant dialogue” and that he hopes a deal can still be done.When asked if he was waiting for Johnson to prove he was healthy (after he missed most of last year with a wrist injury), Keim replied: “Not at all. I’m convinced David is the guy we want to keep as a core member of this team.”Johnson’s scheduled to make $1.88 million this year, the final year of his rookie contract. He led the league with 2 Arizona Cardinals Hoodie ,118 yards from scrimmage and 20 total touchdowns in 2016, which is why the Cardinals would be wise to take care of him, as they go into a season with Sam Bradford at quarterback (which could lead to the debut of rookie Josh Rosen).Of course, Keim might have had more time to work on the project Youth Customized Arizona Cardinals Jerseys , if not for his five-week suspension following an extreme DUI arrest.Robert Nkemdiche leaves preseason game against the New Orleans Saints with injury For the third consecutive preseason, Robert Nkemdiche has had to miss or leave a game with a lower body injury.In today’s game against the New Orleans Saints, Nkemdiche had to leave the game during the Saints second offensive series. The TV broadcast announced that it is the an apparent foot injury that will cost him the rest of the second preseason game.Hopefully, it is nothing serious and just precautionary measures by the team.We will keep you updated as the information comes in.Don’t forget about the opportunity to join the Revenge of the Birds FanPulse.If you sign up www.cardinalsauthorizedshops.com , you’ll be among a hand-selected group from Revenge of the Birds who answers quick polls each week developed by SB Nation. We want to build the definitive poll of informed Cardinals fans, and that includes you. Your votes will be anonymous--though if you join, you’re welcome to tell anyone you like. The results of each poll will be published by Revenge of the Birds, and may end up on SBNation.com also along with the results from other team sites.Ready to sign up as an RotB FanPulse participant? CLICK HERE.