Zach Mettenberger's sample diluted
Former LSU quarterback Zach Mettenberger produced a diluted urine sample at the February scouting combine, a source confirmed to ESPN NFL Insider Adam Schefter.
A diluted sample is usually regarded as a failed test under the NFL's drug-testing program.
Mettenberger's diluted sample was reported earlier Monday by ProFootballTalk.com.
Mettenberger is one of more than 10 prospects with positive tests from the combine, sources told Schefter.
FOX Sports reported ...
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