After to his fourth professional boxing match at the WinStar Casino in Oklahoma, Ravens safety Tom Zbikowski tested positive for marijuana according to Neil Hayes of the Chicago Sun-Times.

Zbi was one of five boxers that tested positive and should be fail his second test will be suspended for 45 days. His coach Mike Joyce told the Sun-Times he is confident that the second test will be negative.

“We’re appealing it,” Joyce told the Chicago Sun-Times. “After the fight, all the fighters tested were positive. They had you pee in a cup and put a strip of something in there. I’ve never seen results where you get them the day of the fight. It was like a home pregnancy test or something.”

Joyce points out that Zbikowski has “taken all sorts of test for the NFL” and has never failed a drug test.