Cowboys players DeMarco Murray and Dez Bryant failed to present the proper identification necessary to take a mandatory drug test during training camp, the players confirmed to ESPN Dallas on Thursday. Bryant said that he has since taken the proper steps and has been cleared by the NFL and is not listed as having failed any tests. Two team sources also confirmed that Bryant has been cleared by the league. Murray, a rookie running back, said he's taken all NFL-mandated drug tests since training camp, including one on Thursday afternoon, and said he's passed all of them.