Cowboys defensive end Robert Quinn was suspended for the first two games of the 2019 season on Tuesday for a violation of the league’s performance-enhancing substance policy.Quinn’s agent Sean Kiernan responded to the news with a statement saying that he is “extremely disappointed” by the league’s decision.Quinn tested positive for probenecid Iman Marshall Jersey , which is a gout medication that can be used as a steroid masking agent. Kiernan said Quinn never knowingly took probenecid and does not take any supplements, but does take prescription medication to prevent seizures.Per Kiernan, Dr. John Lombardo, the NFL’s drug advisor for anabolic steroids and other performance-enhancing drugs http://www.ravenscheapstores.com/trace-mcsorley-jersey-cheap , agreed to delay submitting the results to allow for an investigation into how probenecid got into his system. Kiernan says that Quinn’s pharmacy filled an order for it before filling one for Quinn and that the level of the drug in Quinn’s system was too low to be a masking agent, but could not prove contamination “with certainty” at a hearing.Kiernan said that the NFL admitted during the hearing that they did not believe Quinn was doping intentionally, although that’s not exculpatory as the policy holds players responsible for everything they put in their body. Kiernan still calls the league’s decision “tone deaf” and said he is “disgusted by the actions of NFL attorney Kevin Manara both prior to and during the hearing.” The Cardinals promoted quarterback Charles Kanoff from the practice squad Saturday. They cut receiver Jalen Tolliver in a corresponding move.Kanoff becomes the third quarterback on the team’s 53-player roster, joining Josh Rosen and Mike Glennon. He benefited from the release of Sam Bradford David Montgomery Jersey , earning the elevation after spending the season on the practice squad.In the preseason, Kanoff completed 15 of 36 passes for 178 yards and a touchdown. Kanoff set Princeton career records for passing yards (7,510) and completions (655) while setting Ivy League and school single-season records in 2017 as a senior with 3,474 passing yards and a 73.2 completion percentage. He was named Ivy League Offensive Player of the Year in 2017.Tolliver originally signed with the Cardinals in May as an undrafted rookie free agent from the University of Arkansas-Monticello. He has spent the entire season on Arizona’s practice squad before being promoted four days ago.