OMAHA, Neb. (AP) — Defensive end Randy Gregory says he’s tested positive for marijuana at the NFL scouting combine last month and that he failed two drug tests at Nebraska last year.

Gregory disclosed his marijuana use in an interview with NFL Media on Wednesday.

Gregory went into February’s scouting combine projected to be among the top 10 picks in the draft. He declared for the draft after his junior season at Nebraska, where he recorded 17 1/2 sacks in two seasons.

He said he tested positive for marijuana at Nebraska in January 2014 and April 2014. Gregory said he hadn’t smoked marijuana since December and that he understands the failed drug tests could hurt his draft position.

Eddie Rhodman Jr., one of Gregory’s handlers, said on Thursday that Gregory would not comment further.