/https%3A%2F%2Fsportsmole-media-prod.s3.gra.io.cloud.ovh.net%2F14%2F16%2Fnick-calathes-memphis-grizzlies.jpg "Calathes suspended following failed drugs test")
Nick Calathes has been suspended for 20 games after being found to have violated the NBA's anti-drug policy.
The league announced that the Memphis Grizzlies rookie guard has tested positive for Tamoxifen, a substance which is banned by the NBA.
According to Yahoo! Sports, the drug was found in a supplement that the 25-year-old had been taking.
Calathes's suspension starts this evening, when the Grizzlies face the Oklahoma City Thunder in the first round of the playoffs.
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Memphis Grizzlies
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