Per a report by NFL.com’s Ian Rapoport, former Alabama linebacker and first-round hopeful Reuben Foster failed a drug test at the NFL Combine for a diluted sample.

Here’s a snippet from the report:

Last month, Foster was notified that his urine sample obtained in Indianapolis during the combine was reported as dilute. Based on the provisions of the NFL’s policy and program for substances of abuse, “this will be treated like a positive test.”

In discussing his trying few months, Foster disclosed the test results to NFL.com because, he says, “This is something that’s going to get out. I don’t make excuses. I’m a real dude. I try to be a good person. … I just hope the coaches understand and that’s all I can hope and pray for.” Foster has already been on the phone talking with teams telling them himself.

Foster attributes it to food poisoning. He said he was sick before the combine, and he saw a doctor, received medication and started hydrating himself.

“I couldn’t eat much, but I had to drink water and Gatorade,” said Foster to NFL.com. “Then a few coaches said something about me being too light. And I’m a coach-pleaser. I don’t care what everybody thinks, but I care what coaches think. So I drank and ate as much as I could without throwing up. Then I went in there, drinking and drinking water, trying to flush out my system from whatever was making me sick and trying to keep my weight up and took the test.”

The failed test comes on the heels of Foster being sent home early from the combine following a reported altercation with a hospital worker. He met with teams individually around Alabama’s Pro Day and even sent teams a letter, and it seems he’s already been in touch with teams about his failed test.

Foster had a huge career in Tuscaloosa, and he won the Butkus Award at the conclusion of last season. He’s arguably the top linebacker prospect in the draft, too, after racking up an impressive 211 tackles during his career.

There aren’t many concerns surrounding Foster’s on-the-field performance, but off-the-field concerns could be an issue leading into the NFL Draft. How much of an impact will it have on his draft stock? It’s hard to tell, because all it takes is one team to take a chance on Foster, but this certainly isn’t good news.