Seantrel Henderson has admitted he tested positive for marijuana while playing at the University of Miami, and now a positive test at the NFL Combine might hurt his draft status.

ESPN's Adam Schefter reported today that Henderson, a former standout at Cretin-Derham Hall, failed a drug screening at the Combine. Schefter cited NFL sources in his report.

On April 3, the 6-foot-7, 340-pound Henderson quit during his Pro Day drills at Miami, blaming dehydration.

All that baggage is likely to hurt Henderson, who at times had been projected to be a high draft choice. He's one of the largest and most athletic offensive linemen in the draft.