Collins missed multiple drug tests, according to sources, but he also believes there are valid reasons for almost each missed test.
One missed test came in November on the day that
Cowboys strength and conditioning coach Markus Paul died and the organization sent all its players home to allow them to grieve.
Another missed test came on the day of Collins' uncle's funeral in Arizona, according to a source. The Cowboys gave Collins permission to leave Dallas and tend to his family, the source told ESPN.
A third missed test came on the day Collins
underwent hip surgery in October. The league counted a positive test for codeine against him, but Collins was prescribed the drug after having the surgery.
Collins didn't have any positive marijuana tests during the past 18 months. His representatives also have argued that under the drug policy in the new collective bargaining agreement, suspensions aren't permitted for missed tests.
https://www.espn.com/nfl/story/_/id...peal-cites-excused-absences-missed-drug-tests