The NCAA sent a letter of inquiry to Michigan State University Tuesday opening an investigation into any rule violations the University might have violated in relation to the assaults former USA Gymnastics and Michigan State doctor Larry Nassar committed against girls and young women, including some student-athletes at Michigan State.

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Nassar, who worked for Michigan State for decades, is currently serving a 60-year sentence for child pornography charges and standing trial for molesting seven girls, to which he has pled guilty.