The most decorated gymnast in US history Simone Biles has slammed a school banner with a reference to the disgraced team doctor Larry Nassar, who is serving a life sentence after pleading guilty to sexually assaulting gymnasts.

The controversy surrounding the pedophile doctor was sparked after someone from a University of Michigan fraternity hung a self-made banner during Saturday’s football game mocking Nassar’s victims whom he assaulted for years under the pretext of medical help.

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The former Michigan State University assistant professor Nassar was sentenced to up to 175 years in prison for sexual crimes he committed during a period spanning more than 30 years.

The poster was spotted during a football game between the University of Michigan and Michigan State University and was apparently making the supposed joke in the context of Michigan rivalry.

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